955
0
19
347
0
19
3830
0
19
1331
12
19
1520
20
18
811
0
18
734
0
18
548
0
18
1022
0
18
590
5
17
793
2
17
720
0
17
254
6
16
183
2
16
833
0
16
955
10
16
1159
4
15
381
0
14
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Keyword(s): 数学2