737
0
27
865
4
27
1166
0
27
1260
0
27
678
1
26
1034
0
25
938
0
25
822
0
25
950
0
25
452
0
24
743
1
23
427
0
23
782
2
22
597
0
22
870
0
22
1067
0
22
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Keyword(s): 数学 二次方程式