735
1
21
1398
0
20
2807
7
20
524
0
20
750
2
19
960
0
19
685
2
19
550
0
18
550
0
18
1027
0
18
596
0
18
470
0
18
841
0
18
486
2
17
498
0
17
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Keyword(s): 中学2年 数学