27438
23
830
16273
10
629
28529
6
524
9007
8
367
16579
10
329
8099
4
326
12134
6
308
7161
3
252
12308
0
236
4938
6
216
6532
5
210
10536
5
200
4852
16
197
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Keyword(s): 1次方程式