20894
17
2998
13030
7
1877
12582
6
1806
3790
0
233
5443
3
214
3145
9
187
2408
4
174
2255
0
173
2052
0
158
1674
2
153
1258
0
138
2992
6
122
1135
5
116
1426
1
92
810
0
90
3296
1
85
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Keyword(s): 数学 公式