1444
0
20
920
0
20
1551
2
20
1380
0
20
1186
0
20
1871
0
20
5461
0
20
765
0
20
1290
2
20
813
0
20
425
0
20
698
0
20
1559
1
19
1095
0
19
825
0
19
915
0
19
1364
0
19
667
0
19
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Keyword(s): 数学Ⅱ