333
2
9
171
0
9
249
1
9
267
0
9
161
0
9
359
0
9
310
2
8
241
0
8
243
0
8
219
0
8
182
0
8
280
2
8
346
0
8
351
0
7
291
0
7
226
2
7
178
0
7
149
2
7
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Keyword(s): 中2数学