998
0
19
1007
0
19
705
0
19
1878
0
19
745
0
19
439
0
19
860
2
19
958
0
19
657
0
19
609
0
19
600
0
19
1330
0
19
956
2
19
777
0
18
2063
0
18
536
0
18
595
0
18
770
0
18
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Keyword(s): 数学i a