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标题: pp- test1 37[求助] [打印本页]

作者: davidfish 时间: 2003-7-28 00:45
标题: pp- test1 37[求助]
_________ produces a crimson glow in a
vacuum tube and is used extensively in
advertising displays.

         Neon that
         When neon
         Neon
         There is neon

答案是C, A为什么不行, glow 是名词吗,我查词霸是verb
thanks

作者: lucyyyh 时间: 2003-7-28 02:03
davidfish, 这个句子有个and连接,所以is 和produces是两个并列的谓语v.故需要一个主语,所以选C.如果选A, that后面是定语从句,缺少谓语.

刚刚查了一下webster, glow 可以作n: brightness or warmth of color.再则crimson在这里是adj.

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