551
0
35
606
0
34
904
0
33
797
0
33
527
1
31
716
4
31
568
0
26
518
0
25
478
0
24
627
1
23
633
0
22
584
2
22
649
2
21
786
3
21
589
5
20
353
0
19
555
2
17
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Keyword(s): 余弦定理