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  3. The passage mainly aims to identify that nanotech may do potential damage to our health and environment. Nanotechnulogy is one

The passage mainly aims to identify that nanotech may do potential damage to our health and environment. Nanotechnulogy is one

admin2012-12-13  19
问题 The passage mainly aims to identify that nanotech may do potential damage to our health and environment.
Nanotechnulogy is one of the fields which is discussed on its health and environment effects just after its appearance.
选项 A、Y
B、N
C、NG
答案A
解析 本题题干关键词并不明显，但根据题文同序原则，答案应在第七段或往下部分。由该段首句提到的…is ahead of the curve when it come to understanding potential dangers…及末段提到的…has been a discussion at the beginning…可推知本题正确。
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大学英语四级

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