1683
8
49
920
3
49
2230
0
49
2810
0
49
866
0
49
533
0
49
1823
11
49
1079
2
49
1782
0
49
1165
2
49
1373
14
49
1792
1
48
1765
2
48
1469
0
48
6841
0
48
2181
0
48
685
0
48
2035
4
48
2520
2
48
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Keyword(s): 数学