631
2
17
647
0
17
558
0
17
613
0
17
617
1
17
509
0
17
1453
6
17
840
0
17
531
0
17
491
0
17
852
6
17
539
0
17
805
5
17
329
0
17
1002
0
17
636
0
17
478
0
17
640
0
17
758
0
17
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Keyword(s): 数学 中3