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17. ____, 70 percent alcohol is more effective than 100 percent alcohol.
(A) An antiseptic used
(B) When used as an antiseptic
(C) An antiseptic when used
(D) How an antiseptic is used


答案:B
難度: 非常簡單
1F
helen41038 小二上 (2014/06/21)
我不確定是不是這樣:

70 percent alcohol is more effective than 100 percent alcohol when (it is)used as an antiseptic.
2F
Wu JEN 國二上 (2015/06/01)
antiseptic 殺菌劑 防腐劑 消毒劑
3F
Sharon 高二上 (2015/06/25)
When alcohol is used as an antiseptic, .....
When used as an antiseptic,...
Use as an antiseptic,...
被當作是殺菌劑來用

17. ____, 70 percent alcohol is more eff..-阿摩線上測驗