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105
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13
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2
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7
1257
19620
8
668
16638
2
488
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5
386
11095
3
336
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7
331
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0
296
10679
13
289
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2
288
9063
6
211
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0
197
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2
179
3506
7
161
5271
4
153
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Keyword(s): 2次方程式