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标题: 大全953--未搜索到讨论 [打印本页]

作者: yuzhong171 时间: 2006-9-13 23:20
标题: 大全953--未搜索到讨论

953. Although no proof yet exists of electromagnetic fields generated by household appliances posing any health threat, mounting scientific evidence has convinced many experts that there is cause for concern.

(A) of electromagnetic fields generated by household appliances posing any health threat

(B) of electromagnetic fields generated by household appliances that pose any threat to health

(D) that poses any threat to health from electromagnetic fields generated by household appliances（C）

(E) for any health threat posed by electromagnetic fields generated by household appliances

that在此的作用是什么？有点不可理解。。。。

搜索无果难道是这个问题过于弱智了? 请高人指点

作者: banks1976 时间: 2006-9-13 23:32
定语从句引导词

作者: yuzhong171 时间: 2006-9-14 21:46
exist不能做名词阿

作者: 行缘 时间: 2007-3-13 09:54
同位语从句that...

作者: gonghao 时间: 2007-3-13 17:09

定语后置

proof （that。。。。） yet exists

作者: termaze 时间: 2011-2-27 08:55
是从位语从句，不是定语从句。

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