451
0
15
670
0
15
414
0
15
338
0
15
751
0
15
466
1
15
1100
1
15
360
0
15
290
0
15
1066
0
15
430
0
15
489
0
15
433
0
15
816
0
15
659
2
15
324
3
15
602
0
15
475
0
15
693
0
15
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Keyword(s): 中1 数学