164
0
4
260
0
4
244
0
4
530
6
4
244
0
4
367
1
4
198
0
4
446
0
4
276
0
4
340
2
4
647
2
4
228
0
4
453
7
4
294
0
4
996
2
4
313
0
4
760
0
4
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Keyword(s): 化学反応