955
0
50
694
3
50
1497
8
50
1361
4
49
12618
5
49
2082
0
49
626
3
48
591
2
48
575
2
48
550
10
48
1748
0
48
1513
2
47
151
0
47
1003
0
47
1573
6
47
782
0
47
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Keyword(s): 数学 中1