306
0
8
276
2
7
132
0
7
171
0
6
481
0
6
325
0
6
309
0
6
114
0
6
265
0
6
235
0
6
298
0
5
279
0
5
280
2
5
135
0
5
297
0
4
82
0
4
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Keyword(s): 理科