题目内容

At present, computer knowledge has become ___________ requirement as the ability to read and write.
A.so basic aB.so a basicC.as basic aD.as a basic
C

试题分析:句意,现在,对电脑知识的需求已经变得和对阅读和写作能力的需求一样基本了。在肯定句中只能用as...as...,排除A和B,as之后要直接接形容词,故排除D,故选C。
点评:在否定句中既可以用not as ...as...也可以用not so...as,而在肯定句中只能用as...as...
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