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关注：1
2013-05-23 12:21
求翻译：化学作用,使原来无毒的五价砷转变为有毒的三价砷是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
化学作用,使原来无毒的五价砷转变为有毒的三价砷
问题补充： |
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2013-05-23 12:21:38
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2013-05-23 12:23:18
The original role of chemical non-toxic arsenic price five into toxic arsenic price for the 3
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2013-05-23 12:24:58
The chemical action, causes the original non-toxic pentavalent arsenic to transform into the virulent three price arsenic
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2013-05-23 12:26:38
Chemical reaction which nontoxic pentavalent arsenic into poisonous arsenic
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2013-05-23 12:28:18
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