It is known to us all E-mail is efficient than sending a fax. A．muchB．manyC．more muchD．much more 题目和参考答案——青夏教育精英家教网—

题目内容

It is known to us all E-mail is______ efficient than sending a fax.

A．much

B．many

C．more much

D．much more

考查比较级。句意“众所周知，电子邮件比传真的效率更高。”根据than可知，应该用比较级，efficient是多音节形容词，比较级借助于more，much可以修饰比较级more。故选D。

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