1912
3
89
1696
6
89
24264
0
88
1421
1
88
2649
1
88
1435
0
87
5719
0
87
2770
7
87
4476
0
87
2926
1
87
2918
3
87
36353
2
86
2332
0
86
1330
0
86
3128
9
86
1144
2
86
2968
0
86
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Keyword(s): 数学∥