378
0
16
316
2
16
446
11
13
314
0
12
287
0
12
215
0
12
354
0
11
418
12
10
350
0
9
198
0
9
339
2
9
285
2
9
246
2
8
245
0
8
350
13
8
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Keyword(s): 1次方程式