357
0
4
249
1
4
225
0
4
274
0
4
269
3
4
685
0
4
400
1
3
307
0
3
457
0
3
363
0
2
417
0
2
304
0
2
285
0
2
402
0
2
327
0
1
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Keyword(s): 数学3