考试
2020-03-16 06:37:51

3125 The new method for refini

题目描述

The new method for refining metals was______that they became practical for many purposes,



The new method for refining metals was______that they became practical for many purposes, one of which was for making pans.

A.so more cheaper

B.so much cheaper

C.so many cheaper

D.such much cheaper

请帮忙给出正确答案和分析,谢谢!

答案解析

B本题考查形容词的比较级,习惯上可用于修

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