6093
0
171
1687
1
70
1098
0
31
860
7
24
448
0
17
1832
1
11
458
0
11
681
0
11
309
0
10
324
0
10
519
0
10
330
0
9
325
0
8
451
0
8
889
1
7
215
0
7
312
0
6
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Keyword(s): 中学数学