题目

题型：不详难度：来源：

In my view, biology is ______ chemistry, but a little easier than mathematics.

A．a subject so difficult as	B．as difficult a subject as
C．as a difficult subject as	D．difficult as a subject as

答案

B

解析

固定结构as +形容词+aan +单数名词 +as 。句意：在我看来生物和化学是一样难的科目但是比数学稍微容易些。