1224
29
47
938
10
47
611
15
46
792
20
46
956
32
45
1340
0
45
763
7
44
646
5
44
596
0
44
522
5
44
889
2
43
597
1
43
691
1
42
781
2
42
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Keyword(s): 数学 中学生