1144
0
45
2294
10
45
674
0
45
803
6
44
1324
5
44
1470
13
44
2184
0
44
3095
1
44
1650
4
44
2344
31
44
1623
0
44
1150
4
44
1237
8
44
1204
6
44
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Keyword(s): 数学