作者dodoro19 (月亮上的猫)
看板Eng-Class
标题[文法] 未来式改现在进行式
时间Mon Mar 15 21:02:52 2010
The central frequency of many 3G wireless systems
will be used to be the center of a spreaded spectrum via
various spread-spectrum techniques.
请问改成
The central frequency of many 3G wireless systems are
the center of a spread spectrum via various spread-spectrum techniques
正确吗
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