534
0
19
873
1
19
645
0
19
603
4
19
824
0
19
1060
0
19
841
1
19
739
0
19
559
0
19
327
0
19
1692
0
18
398
0
18
592
0
18
461
0
18
802
0
18
780
0
18
17801
0
18
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Keyword(s): 中3数学