978
2
30
457
2
30
549
4
30
446
0
30
1469
0
30
405
3
30
778
0
30
1073
0
30
1350
1
30
666
2
30
494
0
30
1079
0
30
610
0
29
577
0
29
969
1
29
1187
0
29
847
5
29
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Keyword(s): 数学 受験