2879
28
88
1842
9
88
2824
1
87
3224
0
87
1272
0
87
2079
1
86
3435
4
86
1660
2
86
6771
1
86
2189
3
86
1864
0
86
3317
0
86
1498
12
85
7522
0
85
1413
4
85
1311
14
85
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Keyword(s): 数学