diff --git a/choices.sty b/choices.sty
index e4eddec..54480be 100644
--- a/choices.sty
+++ b/choices.sty
@@ -1,6 +1,6 @@
 \NeedsTeXFormat{LaTeX2e}[2020/10/01]
 \RequirePackage{expl3}
-\ProvidesExplPackage {choices} {2021-12-25} {3.0.0}
+\ProvidesExplPackage {choices} {2021-12-26} {3.0.1}
   {
 		A package for flexibly LaTeXing choice items based on hlist and LaTeX3.
 		Kangwei Xia
@@ -57,41 +57,43 @@
 % \makeatother
 % 剩下的工作就是设置key-value将quan选项也能纳入进去
 
-\dim_new:N \l__quan_height_of_number_dim       % quan: 储存数字的高度
-\dim_new:N \l__quan_radius_of_circle_dim       % quan: 圆的半径
+\dim_new:N \l__quan_height_of_number_dim        % quan: 储存数字的高度
+\dim_new:N \l__quan_radius_of_circle_dim        % quan: 圆的半径
 \dim_new:N \l__choices_max_width_dim            % choice: 选项的最大宽度
-\dim_new:N \l__line_width_dim                  % 储存当时行宽
+\dim_new:N \l__line_width_dim                   % 储存当时行宽
 
-\fp_new:N \l__quan_xscale_of_number_fp         % quan: 数字的水平压缩比例
-\fp_new:N \l__quan_yscale_of_number_fp         % quan: 数字的垂直压缩比例
+\fp_new:N \l__quan_xscale_of_number_fp          % quan: 数字的水平压缩比例
+\fp_new:N \l__quan_yscale_of_number_fp          % quan: 数字的垂直压缩比例
 
 \seq_new:N \l__choices_items_seq                % choice: 储存选项
 
 \tl_new:N \l__choices_check_tl                  % choice: 将输入进行初步过滤：去掉尾部的&（若有的话）
-\tl_new:N \l__hlistchoice_label_style_tl       % hlistchoice: 用于设置选项的label-style
-\tl_new:N \l__coffinchoice_label_style_tl      % coffinchoice: 用于设置选项的label-style
+\tl_new:N \l__hlistchoice_label_style_tl        % hlistchoice: 用于设置选项的label-style
+\tl_new:N \l__coffinchoice_label_style_tl       % coffinchoice: 用于设置选项的label-style
 \tl_new:N \l__choices_prelabel_tl               % choice: label的前面的设置
 \tl_new:N \l__choices_poslabel_tl               % choice: label的后面的设置
-\tl_new:N \l__hlistchoice_show_label_tl        % hlistchoice: 控制是否显示label
+\tl_new:N \l__hlistchoice_show_label_tl         % hlistchoice: 控制是否显示label
 
 \str_new:N \l__choices_check_last_item_str      % choice: 用于储存\l__choices_check_tl中最后一个字符
 
 \int_new:N \l__choices_item_number_int          % choice: 储存一共有多少个选项
-\int_new:N \l__choices_items_per_line_int        % choice: 每行排多少个
+\int_new:N \l__choices_items_per_line_int       % choice: 每行排多少个
+\int_new:N \l__choices_line_number_int          % choice: 一共有几行
+
+\bool_new:N \l__choices_items_shuffle_bool      % choice: 是否打乱顺序
 
-\bool_new:N \l__choices_items_shuffle_bool       % choice: 是否打乱顺序
-% \bool_set_true:N \l__choices_items_shuffle_bool
 \cs_set_eq:NN \my_settoheight:Nn \settoheight  % 获取高度
 
 % 产生变体
 \prg_generate_conditional_variant:Nnn \dim_compare:nNn {nNv} {F}
-\cs_generate_variant:Nn \dim_set:Nn { Nv }
+\prg_generate_conditional_variant:Nnn \dim_compare:nNn {vNv} {F}
+\cs_generate_variant:Nn \dim_set:Nn { Nv, cv}
 \cs_generate_variant:Nn \dim_max:nn { nv }
 \cs_generate_variant:Nn \coffin_join:NnnNnnnn {cVVcVVnn,NVVNVVnn}
+\cs_generate_variant:Nn \coffin_attach:NnnNnnnn {cVVcVVnn,NVVNVVnn}
 \cs_generate_variant:Nn \coffin_typeset:Nnnnn {cVVnn}
 \cs_generate_variant:Nn \seq_set_split:Nnn {NnV}
 \cs_generate_variant:Nn \str_case:nn {Vn}
-
 % 检查最后一行是否用&&结尾，是的话就去掉，否则choice命令会多出一项
 \cs_new:Npn \__choices_check:n #1
 	{
@@ -135,6 +137,15 @@
 % 检测内容中是否有插图命令，默认将anchor改变
 \bool_new:N \l__coffinchoice_check_graphics_bool
 \str_new:N \l__coffinchoice_check_graphics_anchor_str
+% 控制对应anchor的bool来控制anchor不同的其它操作比如content的升降
+\clist_map_inline:nn
+  {
+		north, south, west, east,
+		northwest, northeast, southwest, southeast
+	}
+	{
+		\bool_new:c { g__coffinchoice_anchor_#1_bool}
+	}
 % 对齐方式
 \tl_new:N \l__coffinchoice_align_tl
 % labelcoffin的水平基准点
@@ -172,6 +183,13 @@
 % 行间距
 \dim_new:N \l__coffinchoice_row_sep_dim
 \dim_new:N \l__coffinchoice_row_sep_add_dim
+% 计算coffin的深度+高度（源自hanzibox.sty）
+\cs_new_nopar:Npn \__coffinchoice_ht_plus_dp:N #1
+  {
+    \coffin_ht:N #1 + \coffin_dp:N #1
+  }
+
+\cs_generate_variant:Nn \__coffinchoice_ht_plus_dp:N {c}
 
 
 \@ifclassloaded { exam }
@@ -196,6 +214,15 @@
 		anchor .choice:,
 		anchor / north.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_north_bool
+				\clist_map_inline:nn
+					{
+						south, west, east,
+						northwest, northeast, southwest, southeast
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { hc }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { H }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { hc }
@@ -206,16 +233,39 @@
 					{ -6pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { hc }
 				\tl_set:Nn \l__typeset_vertical_position_tl { t }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 1em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 6em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { -0.5em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1.2em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
 			},
 		anchor / south.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_south_bool
+				\clist_map_inline:nn
+					{
+						north, west, east,
+						northwest, northeast, southwest, southeast
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { hc }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { t }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { hc }
@@ -226,16 +276,39 @@
 					{ 8pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { hc }
 				\tl_set:Nn \l__typeset_vertical_position_tl { b }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { -1em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0.5em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 1em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 6em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { -1em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 3em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.3em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { -1em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.3em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.7em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
 			},
 		anchor / east.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_east_bool
+				\clist_map_inline:nn
+					{
+						north, south, west,
+						northwest, northeast, southwest, southeast
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { l }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { vc }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { r }
@@ -243,19 +316,42 @@
 				\dim_set:Nn \l__labelcontentcoffin_join_horizontal_xshift_dim
 					{ -8pt }
 				\dim_set:Nn \l__labelcontentcoffin_join_vertical_yshift_dim
-					{ 0pt }
+					{ -1pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { r }
 				\tl_set:Nn \l__typeset_vertical_position_tl { vc }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { -1em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0.5em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 5em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 12em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0.6em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 8.5em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8.5em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0.6em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.3em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.3em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 5em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8.5em }
+				}
 			},
 		anchor / west.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_west_bool
+				\clist_map_inline:nn
+					{
+						north, south, east,
+						northwest, northeast, southwest, southeast
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { r }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { vc }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { l }
@@ -263,19 +359,42 @@
 				\dim_set:Nn \l__labelcontentcoffin_join_horizontal_xshift_dim
 					{ 8pt }
 				\dim_set:Nn \l__labelcontentcoffin_join_vertical_yshift_dim
-					{ 0pt }
+					{ -1pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { l }
 				\tl_set:Nn \l__typeset_vertical_position_tl { vc }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 0.3em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 1.5em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { -4em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.2em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { -4em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
 			},
 		anchor / northeast.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_northeast_bool
+				\clist_map_inline:nn
+					{
+						north, south, west, east,
+						northwest, southwest, southeast
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { l }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { H }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { r }
@@ -286,16 +405,39 @@
 					{ -4pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { r }
 				\tl_set:Nn \l__typeset_vertical_position_tl { t }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.5em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 5em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 10em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 10em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 9em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 6em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 9em }
+				}
 			},
 		anchor / northwest.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_northwest_bool
+				\clist_map_inline:nn
+					{
+						north, south, west, east,
+						northeast, southwest, southeast
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { r }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { H }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { l }
@@ -306,16 +448,39 @@
 					{ -4pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { l }
 				\tl_set:Nn \l__typeset_vertical_position_tl { t }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.5em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 4em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { -2em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
 			},
 		anchor / southeast.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_southeast_bool
+				\clist_map_inline:nn
+					{
+						north, south, west, east,
+						northwest, northeast, southwest
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { l }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { t }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { r }
@@ -326,16 +491,39 @@
 					{ 0pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { r }
 				\tl_set:Nn \l__typeset_vertical_position_tl { H }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 5em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 10em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 2.5em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 3em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { 7em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 9em }
+				}
 			},
 		anchor / southwest.code:n =
 			{
+				\bool_gset_true:N \g__coffinchoice_anchor_southwest_bool
+				\clist_map_inline:nn
+					{
+						north, south, west, east,
+						northwest, northeast, southeast
+					}
+					{
+						\bool_gset_false:c { g__coffinchoice_anchor_#1_bool }
+					}
 				\tl_set:Nn \l__labelcoffin_horizontal_position_tl { r }
 				\tl_set:Nn \l__labelcoffin_vertical_position_tl { t }
 				\tl_set:Nn \l__contentcoffin_horizontal_position_tl { l }
@@ -343,16 +531,30 @@
 				\dim_set:Nn \l__labelcontentcoffin_join_horizontal_xshift_dim
 					{ 6pt }
 				\dim_set:Nn \l__labelcontentcoffin_join_vertical_yshift_dim
-					{ 20pt }
+					{ -2pt }
 				\tl_set:Nn \l__typeset_horizontal_position_tl { l }
 				\tl_set:Nn \l__typeset_vertical_position_tl { H }
-				\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
-				\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_top_sep_dim { 0em }
-				\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.2em }
-				\dim_set:Nn \l__coffinchoice_first_column_sep_dim { -2.5em }
-				\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 1em }
+				\bool_if:NTF \l__coffinchoice_check_graphics_bool
+				{
+					% 图片版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 2em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 1.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { -5em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
+				{
+					% 文字版本
+					\dim_set:Nn \l__typeset_horizontal_xshift_dim { 0em }
+					\dim_set:Nn \l__typeset_vertical_yshift_dim { 0em }
+					\dim_set:Nn \l__coffinchoice_top_sep_dim { 1em }
+					\dim_set:Nn \l__coffinchoice_bottom_sep_dim { 0.2em }
+					\dim_set:Nn \l__coffinchoice_row_sep_dim { 0.5em }
+					\dim_set:Nn \l__coffinchoice_first_column_sep_dim { -2em }
+					\dim_set:Nn \l__coffinchoice_greater_than_first_column_sep_dim { 8em }
+				}
 			},
 		anchor .initial:n = west,
 		items .int_set:N = \l__choices_items_per_line_int,
@@ -558,13 +760,6 @@
 {
 	\group_begin:
 		\dim_set_eq:NN \l__line_width_dim \linewidth   % 储存行宽
-		% \seq_set_split:Nnn \l__choices_items_seq {&&} {#2}
-		% \tl_set:Nn \l__choices_check_tl {#2}
-		% \str_set:Nx \l__choices_check_last_item_str { \tl_item:Nn \l__choices_check_tl {-1} }
-		% \str_if_eq:VnT { \l__choices_check_last_item_str  } { & }
-		% 	{
-		% 		\seq_pop_right:NN \l__choices_items_seq \l_tmpa_seq
-		% 	}
 		\__choices_check:n {#2}
 		\__choices_items_shuffle:n { \l__choices_items_seq }
 		\bool_if:NT \l__coffinchoice_check_graphics_bool
@@ -649,13 +844,17 @@
 					{
 						\dim_new:c { l__coffinchoice_measure_width_ \int_to_roman:n { ##1 } _dim }
 					}
-				% 把每个选项存到对应的盒子里面
-				\hcoffin_set:cn { l__content_ \int_to_roman:n { ##1 } _coffin }
-					{
+				\hcoffin_set:cw { l__content_ \int_to_roman:n { ##1 } _coffin }
+					% {
+						% \fbox{
+						% \raisebox{1em}{
 						\begin{varwidth}{\hsize}
 							\seq_item:Nn \l__choices_items_seq { ##1 } 
 						\end{varwidth}
-					}
+						% }
+						% }
+					% }
+				\hcoffin_set_end:
 				% \hcoffin_set:cn { l__label_ \int_to_roman:n { ##1 } _coffin }
 				% 	{
 				% 		\l__choices_prelabel_tl
@@ -685,7 +884,158 @@
 				{ \int_set:Nn \l__choices_items_per_line_int {4} }
 		}
 		\keys_set:nn { choice / coffinchoice } { label-style = Alph, #1 }
-		% \__choices_items_shuffle:n { \l__choices_items_seq }
+
+		% 储存总行数
+		\int_set:Nn \l__choices_line_number_int
+			{
+				\int_compare:nNnTF
+					{
+						\int_mod:nn { \l__choices_item_number_int } { \l__choices_items_per_line_int }
+					} = { 0 }
+					{
+						\int_div_truncate:nn 
+							{ \l__choices_item_number_int }
+							{ \l__choices_items_per_line_int }
+					}
+					{
+						\int_div_truncate:nn 
+							{ \l__choices_item_number_int }
+							{ \l__choices_items_per_line_int } +1
+					}
+			}
+		% 创建行高度最大值变量
+		% 注意要用##1, 因为是在coffinchoice命令中定义
+		\int_step_inline:nn { \l__choices_line_number_int }
+			{
+				\dim_if_exist:cTF { l__coffinchoice_max_height_ \int_to_roman:n {##1}_dim }
+				{}
+				{
+					\dim_new:c { l__coffinchoice_max_height_ \int_to_roman:n {##1}_dim }
+				}
+			}
+		\int_step_inline:nn { \l__choices_item_number_int }
+			{
+				\hcoffin_set:cw { l__content_ \int_to_roman:n { ##1 } _coffin }
+						\begin{varwidth}{\hsize}
+							\seq_item:Nn \l__choices_items_seq { ##1 } 
+						\end{varwidth}
+				\hcoffin_set_end:
+				% \coffin_scale:cnn { l__content_ \int_to_roman:n { ##1 } _coffin }
+					% {1} {0.6}
+			}
+		% 先把每行第一个的总高度存到max_行里面
+		\int_step_inline:nn { \l__choices_item_number_int }
+			{
+				\int_compare:nNnTF { \int_mod:nn {##1} { \l__choices_items_per_line_int } } = {1}
+					{
+						\dim_set:cn { l__coffinchoice_max_height_ \int_to_roman:n { \int_div_truncate:nn {##1} { \l__choices_items_per_line_int } +1}_dim }
+							{
+								\__coffinchoice_ht_plus_dp:c  { l__content_ \int_to_roman:n { ##1 } _coffin }
+							}
+					}
+					{}
+			}
+		\int_step_inline:nn { \l__choices_item_number_int }
+			{
+				% 新建每项的高度变量
+				\dim_if_exist:cTF { l__coffinchoice_height_ \int_to_roman:n {##1}_dim }
+				{}
+				{
+					\dim_new:c { l__coffinchoice_height_ \int_to_roman:n {##1}_dim }
+				}
+				\dim_set:cn { l__coffinchoice_height_ \int_to_roman:n {##1}_dim }
+					{
+						\__coffinchoice_ht_plus_dp:c  { l__content_ \int_to_roman:n { ##1 } _coffin }
+						% \coffin_ht:c { l__content_ \int_to_roman:n { ##1 } _coffin }
+					}
+				% 每项的高度改变量
+				\dim_if_exist:cTF { l__coffinchoice_height_change_ \int_to_roman:n {##1}_dim }
+				{}
+				{
+					\dim_new:c { l__coffinchoice_height_change_ \int_to_roman:n {##1}_dim }
+				}
+				% \dim_use:c { l__coffinchoice_height_ \int_to_roman:n {##1}_dim }
+			}
+		% 下面将获取每行的高度最大值并储存到max_行里面
+		\int_step_inline:nn { \l__choices_line_number_int }
+			{
+				\int_step_inline:nn { \l__choices_item_number_int }
+					{
+						\int_compare:nNnTF
+							{ \l__choices_items_per_line_int * (##1 -1) } < { ####1 }
+							{
+								\int_compare:nNnTF
+									{ ####1 } < { \l__choices_items_per_line_int * ##1 +1 }
+									{
+										\dim_compare:vNvF { l__coffinchoice_max_height_ \int_to_roman:n {##1}_dim  } > { l__coffinchoice_height_ \int_to_roman:n {####1}_dim }
+										% 把大的储存到max里面
+										{
+											\dim_set:cv 
+												{ l__coffinchoice_max_height_ \int_to_roman:n {##1}_dim  } 
+												{ l__coffinchoice_height_ \int_to_roman:n {####1}_dim } 
+										}
+									}
+									{}
+							}
+							{}
+					}
+			}
+		% 搞不懂为什么bool为什么没有用
+		% \clist_map_inline:nn
+		% 	{
+		% 		north, south, west, east,
+		% 		northwest, northeast, southwest, southeast
+		% 	}
+		% 	{
+		% 		\bool_if:cTF { g__coffinchoice_anchor_##1_bool }
+		% 		{ ##1 true \par }
+		% 		{ ##1 false \par }
+		% 	}
+		\int_step_inline:nn { \l__choices_line_number_int }
+			{
+				\int_step_inline:nn { \l__choices_item_number_int }
+					{
+						\dim_set:cn { l__coffinchoice_height_change_ \int_to_roman:n {##1}_dim }
+							{
+								\dim_eval:n 
+									{
+									\use:c 
+									{ l__coffinchoice_max_height_ \int_to_roman:n {##1}_dim }/2
+									-
+									\cs:w l__coffinchoice_height_ \int_to_roman:n {####1}_dim \cs_end:/15
+									}
+							}
+						\hcoffin_set:cw { l__content_ \int_to_roman:n { ####1 } _coffin }
+								\raisebox
+									{
+										1em
+										% \dim_use:c { l__coffinchoice_height_change_ \int_to_roman:n {##1}_dim }
+										% \bool_if:NTF \g__coffinchoice_anchor_south_bool
+										% 	{
+												% \cs:w l__coffinchoice_max_height_ \int_to_roman:n {##1}_dim  \cs_end: /2
+												% -
+												% \cs:w l__coffinchoice_height_ \int_to_roman:n {####1}_dim \cs_end: /15
+										% 	}
+										% 	{2em}
+										% \bool_if:NT \g__coffinchoice_anchor_north_bool
+										% 	{
+										% 		\use:c 
+										% 		{ l__coffinchoice_max_height_ \int_to_roman:n {##1}_dim }
+										% 		-
+										% 		\cs:w l__coffinchoice_height_ \int_to_roman:n {####1}_dim \cs_end:/2
+										% 	}
+										% 	{0em}
+									}
+									{
+										\begin{varwidth}{\hsize}
+											\seq_item:Nn \l__choices_items_seq { ####1 } 
+										\end{varwidth}
+									}
+								% }
+							% }
+						\hcoffin_set_end:
+					}
+			}
 		\int_step_inline:nn { \l__choices_item_number_int }
 			{
 				\hcoffin_set:cn { l__label_ \int_to_roman:n { ##1 } _coffin }
@@ -707,7 +1057,8 @@
 		\vspace* { \dim_eval:n { \l__coffinchoice_top_sep_dim + \l__coffinchoice_top_sep_add_dim} }   % topsep
 		\int_step_inline:nn { \l__choices_item_number_int }
 			{
-				\coffin_join:cVVcVVnn
+				% 把join改成attach就解决了对齐问题
+				\coffin_attach:cVVcVVnn
 					{ l__label_ \int_to_roman:n { ##1 } _coffin }
 					% { l__content_ \int_to_roman:n { ##1 } _coffin }
 						\l__labelcoffin_horizontal_position_tl