1441
8
51
2159
7
51
1413
0
51
1692
2
51
416
0
51
363
0
51
865
14
51
2031
23
51
355
3
51
1585
19
51
2864
0
51
2192
19
51
1630
0
51
1620
6
51
2448
24
51
737
9
51
970
2
51
927
0
50
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Keyword(s): 数学