1912
3
89
1696
6
89
24243
0
88
1420
1
88
2648
1
88
1435
0
87
5709
0
87
2769
7
87
4473
0
87
2924
1
87
2915
3
87
36353
2
86
2327
0
86
1330
0
86
3128
9
86
1139
2
86
2190
0
86
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Keyword(s): 数学