207
0
8
685
0
8
578
0
7
622
0
7
686
2
7
933
0
7
253
0
7
328
0
7
1030
0
7
902
0
7
551
10
7
303
0
7
415
6
7
387
0
6
599
3
6
314
2
6
504
1
6
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Keyword(s): 数学2