770
5
18
768
0
18
412
0
18
650
2
18
978
0
18
955
2
18
851
0
18
684
0
18
489
0
18
1008
0
18
1023
0
17
382
0
17
752
0
17
749
0
17
250
0
17
635
0
17
636
0
17
696
0
17
1721
0
17
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Keyword(s): 中3 数学