787
0
25
1971
8
19
584
0
19
1393
2
13
1557
0
12
613
2
11
653
2
11
433
0
10
552
2
10
456
2
10
1087
0
10
550
0
9
453
2
9
360
0
9
349
0
9
585
0
9
1400
0
9
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Keyword(s): 化学