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标题: gwd30-20 google到一半答案，是A [打印本页]

作者: nicoleinca 时间: 2006-11-3 04:25
标题: gwd30-20 google到一半答案，是A

我尝试google了一下（key words: the magnetic fields emitted security surveillance system)

http://www.google.com/search?hl=zh-CN&q=the+magnetic+fields+emitted+security+surveillance+system&btnG=Google+%E6%90%9C%E7%B4%A2&lr=

请看第5条：

news@nature.com - hop'til you drop

Michael Mclvor of the Heart Institute of St Petersburg, Florida, and colleagues announce in the New England Journal Medicine that the magnetic fields emitted by one type of shop security surveillance system, of which there are 200,...

已经可以解决大家的分歧了，A: of which there are 200,...是对的。无法查到原文，需要register for subscribe, 太麻烦了。

作者: aborigin 时间: 2006-11-6 22:04
谢谢LZ，强的

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