1511
3
43
266
0
43
713
0
43
930
2
43
538
0
43
368
0
43
361
0
42
4282
3
42
856
4
42
968
0
42
713
0
42
520
1
41
861
3
41
1500
11
41
538
0
41
1151
0
41
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Keyword(s): 公式 数学