2381
2
13
612
0
13
397
2
13
992
0
13
875
0
13
775
0
13
609
0
12
349
4
12
577
0
12
347
9
12
596
0
12
360
1
12
532
0
12
502
0
12
1090
0
12
507
2
12
187
6
11
625
0
11
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Keyword(s): 数学 意味