1686
4
67
4261
0
67
2159
5
67
2272
7
67
870
0
67
1371
8
67
3741
2
67
873
7
66
1772
2
66
3452
3
66
2602
38
66
2234
8
66
684
4
66
3579
0
66
991
14
66
2711
5
66
3450
0
66
3050
21
66
1623
2
66
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Keyword(s): 数学