31143
2
1310
7138
3
249
5115
2
155
2138
2
101
1849
0
63
2399
0
47
2883
1
44
1031
5
38
857
0
27
942
0
21
562
1
21
788
0
20
809
3
19
828
0
19
592
4
18
498
0
17
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Keyword(s): 二等辺三角形 性質 条件