Could not fetch row with primary-key item_mock_c2_006.

id assignment_id child_id item_type parent_id sort_order title content status created_at updated_at major_index ocr_major_title major_score subject section options correct_answer image_idx page_number score extra_content
item_mock_m1_000 asgn_math_mock child_5b46b9f7 major 0 计算下面各题，能简算的要简算。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 一、计算下面各题，能简算的要简算。 24.0 数学 jisuan [] 0 1 0.0 [] Edit Delete
item_mock_m1_001 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m1_000 1 5/6 + 3/4 = pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 jisuan [] 0 1 4.0 [] Edit Delete
item_mock_m1_002 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m1_000 2 7/8 − 2/5 = pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 jisuan [] 0 1 4.0 [] Edit Delete
item_mock_m1_003 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m1_000 3 1/3 + 2/7 + 1/5 = pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 jisuan [] 0 1 4.0 [] Edit Delete
item_mock_m1_004 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m1_000 4 3 − 1/4 − 3/4 =（能简算的要简算） pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 jisuan [] 0 1 4.0 [] Edit Delete
item_mock_m1_005 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m1_000 5 5/9 + 7/12 + 4/9 =（简算） pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 jisuan [] 0 1 4.0 [] Edit Delete
item_mock_m1_006 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m1_000 6 解方程：x + 2/3 = 7/9 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 jisuan [] 0 1 4.0 [] Edit Delete
item_mock_m2_000 asgn_math_mock child_5b46b9f7 major 100 填空题。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 二、填空题。 20.0 数学 tiankong [] 0 2 0.0 [] Edit Delete
item_mock_m2_001 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m2_000 101 把 3/4 化成最简分数是[ ]。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 tiankong [] 0 2 4.0 [] Edit Delete
item_mock_m2_002 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m2_000 102 5/8 = [ ]/24 = [ ] ÷ 40 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 tiankong [] 0 2 4.0 [] Edit Delete
item_mock_m2_003 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m2_000 103 7/12 的分数单位是[ ]，它有[ ]个这样的分数单位。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 tiankong [] 0 2 4.0 [] Edit Delete
item_mock_m2_004 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m2_000 104 5/6、7/9、11/18 按从小到大的顺序排列：[ ] pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 tiankong [] 0 2 4.0 [] Edit Delete
item_mock_m2_005 asgn_math_mock child_5b46b9f7 fill_blank item_mock_m2_000 105 分母是 9 的最简真分数一共有[ ]个。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 tiankong [] 0 2 4.0 [] Edit Delete
item_mock_m3_000 asgn_math_mock child_5b46b9f7 major 200 判断题（对的打√，错的打×）。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 三、判断题（对的打√，错的打×）。 10.0 数学 panduan [] 0 3 0.0 [] Edit Delete
item_mock_m3_001 asgn_math_mock child_5b46b9f7 true_false item_mock_m3_000 201 一个分数的分子和分母同时乘 3，分数的大小不变。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 panduan [] √ 0 3 2.0 [] Edit Delete
item_mock_m3_002 asgn_math_mock child_5b46b9f7 true_false item_mock_m3_000 202 3/4 + 1/4 = 4/8 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 panduan [] × 0 3 2.0 [] Edit Delete
item_mock_m3_003 asgn_math_mock child_5b46b9f7 true_false item_mock_m3_000 203 两个分数相加，分母不变，分子直接相加。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 panduan [] × 0 3 2.0 [] Edit Delete
item_mock_m3_004 asgn_math_mock child_5b46b9f7 true_false item_mock_m3_000 204 大于 1/5 小于 3/5 的分数只有 2/5。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 panduan [] × 0 3 2.0 [] Edit Delete
item_mock_m3_005 asgn_math_mock child_5b46b9f7 true_false item_mock_m3_000 205 1 − 5/8 = 3/8 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 panduan [] √ 0 3 2.0 [] Edit Delete
item_mock_m4_000 asgn_math_mock child_5b46b9f7 major 300 解决问题。 pending 2026-06-14 14:23:29 2026-06-14 14:23:29 四、解决问题。 24.0 数学 yingyong [] 0 4 0.0 [] Edit Delete
item_mock_m4_001 asgn_math_mock child_5b46b9f7 short_answer item_mock_m4_000 301 一条公路长 7/8 千米，第一天修了 1/4 千米，第二天修了 3/8 千米。还剩多少千米没有修？ pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 yingyong [] 0 4 6.0 [] Edit Delete
item_mock_m4_002 asgn_math_mock child_5b46b9f7 short_answer item_mock_m4_000 302 小明做数学题，第一天完成了全部题的 1/3，第二天完成了全部题的 2/5。两天一共完成了全部题的几分 ... pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 yingyong [] 0 4 6.0 [] Edit Delete
item_mock_m4_003 asgn_math_mock child_5b46b9f7 short_answer item_mock_m4_000 303 学校运来 7/10 吨沙子，铺路用去了 2/5 吨，砌墙用去了 1/4 吨。还剩多少吨沙子？ pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 yingyong [] 0 4 6.0 [] Edit Delete
item_mock_m4_004 asgn_math_mock child_5b46b9f7 short_answer item_mock_m4_000 304 一瓶饮料 3/4 升，爸爸喝了 1/6 升，妈妈喝了 1/3 升。还剩多少升？ pending 2026-06-14 14:23:29 2026-06-14 14:23:29 0.0 数学 yingyong [] 0 4 6.0 [] Edit Delete
mock_seq_0001 asgn_cn_mock child_5b46b9f7 major 1 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 一 一、看拼音写词语 4.0 chinese 0 17 0.0 Edit Delete
mock_seq_0002 asgn_cn_mock child_5b46b9f7 group 2 看拼音，在括号里写出相应的词语。 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 0.0 Edit Delete
mock_seq_0003 asgn_cn_mock child_5b46b9f7 fill_blank 3 chéng lì （ ） pinyin_item pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 1.0 Edit Delete
mock_seq_0004 asgn_cn_mock child_5b46b9f7 fill_blank 4 jūn fá （ ） pinyin_item pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 1.0 Edit Delete
mock_seq_0005 asgn_cn_mock child_5b46b9f7 fill_blank 5 jiào xíng （ ） pinyin_item pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 1.0 Edit Delete
mock_seq_0006 asgn_cn_mock child_5b46b9f7 fill_blank 6 xī shēng （ ） pinyin_item pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 1.0 Edit Delete
mock_seq_0007 asgn_cn_mock child_5b46b9f7 major 7 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 二 二、查字典填空 5.0 chinese 0 17 0.0 Edit Delete
mock_seq_0008 asgn_cn_mock child_5b46b9f7 fill_blank 8 "鼎"共有 [ ] 画，第六笔是 [ ]，音节是 [ ]。 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 3.0 Edit Delete
mock_seq_0009 asgn_cn_mock child_5b46b9f7 fill_blank 9 "鼎"在字典里主要有两种解释： 解释① 古代煮东西用的器物 [ ] 解释② 借指王位、帝业 [ ] 用这两种解释分别组 ... pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 2.0 Edit Delete
mock_seq_0010 asgn_cn_mock child_5b46b9f7 major 10 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 三 三、给加点的字选择恰当的解释 4.0 chinese 0 17 0.0 Edit Delete
mock_seq_0011 asgn_cn_mock child_5b46b9f7 single_choice 11 解释选项（填序号）： pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese ["A. 结实，牢固", "B. 坚硬", "C. 坚决地， ... 0 17 0.0 Edit Delete
mock_seq_0012 asgn_cn_mock child_5b46b9f7 single_choice 12 人固有一死。（ ） pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese ["A. 结实，牢固", "B. 坚硬", "C. 坚决地， ... 0 17 1.0 Edit Delete
mock_seq_0013 asgn_cn_mock child_5b46b9f7 single_choice 13 战士们坚守阵地。（ ） pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese ["A. 结实，牢固", "B. 坚硬", "C. 坚决地， ... 0 17 1.0 Edit Delete
mock_seq_0014 asgn_cn_mock child_5b46b9f7 single_choice 14 赵州桥不但坚固，而且美观。（ ） pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese ["A. 结实，牢固", "B. 坚硬", "C. 坚决地， ... 0 17 1.0 Edit Delete
mock_seq_0015 asgn_cn_mock child_5b46b9f7 single_choice 15 水泥很快就凝固了。（ ） pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese ["A. 结实，牢固", "B. 坚硬", "C. 坚决地， ... 0 17 1.0 Edit Delete
mock_seq_0016 asgn_cn_mock child_5b46b9f7 major 16 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 四 四、补充词语，完成练习 17.5 chinese 0 17 0.0 Edit Delete
mock_seq_0017 asgn_cn_mock child_5b46b9f7 group 17 补充词语： pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 0.0 Edit Delete
mock_seq_0018 asgn_cn_mock child_5b46b9f7 fill_blank 18 一[ ]而入 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 0.5 Edit Delete
mock_seq_0019 asgn_cn_mock child_5b46b9f7 fill_blank 19 五[ ]四海 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 0.5 Edit Delete
mock_seq_0020 asgn_cn_mock child_5b46b9f7 fill_blank 20 目不转[ ] pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 17 0.5 Edit Delete
mock_seq_0021 asgn_cn_mock child_5b46b9f7 fill_blank 21 三长两[ ] pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 18 0.5 Edit Delete
mock_seq_0022 asgn_cn_mock child_5b46b9f7 fill_blank 22 [ ]兵简政 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 18 0.5 Edit Delete
mock_seq_0023 asgn_cn_mock child_5b46b9f7 fill_blank 23 死得其[ ] pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 18 0.5 Edit Delete
mock_seq_0024 asgn_cn_mock child_5b46b9f7 fill_blank 24 奄奄一[ ] pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 18 0.5 Edit Delete
mock_seq_0025 asgn_cn_mock child_5b46b9f7 fill_blank 25 [ ]气冲冲 pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 18 0.5 Edit Delete
mock_seq_0026 asgn_cn_mock child_5b46b9f7 group 26 完成练习： pending 2026-06-14 08:07:16 2026-06-14 08:07:16 0.0 chinese 0 18 0.0 Edit Delete