3192
2
304
1401
0
109
1454
4
105
1971
8
87
878
1
73
5293
9
69
1225
8
67
1082
5
67
906
0
67
887
2
66
1287
0
64
1817
21
63
831
2
59
1403
4
55
833
7
52
1018
0
52
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Keyword(s): 中学数学