809
0
15
275
0
14
807
0
14
343
0
14
323
2
14
7568
0
14
281
0
14
1285
0
14
395
0
14
386
0
14
311
0
14
492
0
14
997
0
14
480
0
14
462
0
14
955
0
14
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Keyword(s): #数学a