539
4
39
394
2
39
804
4
39
1056
0
39
449
9
38
1588
0
38
774
12
38
604
1
38
564
6
38
424
6
38
749
7
38
550
5
37
615
0
37
748
2
37
586
4
37
1147
11
37
473
8
37
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Keyword(s): 数学、