prep1 语法题目，不知道题号

graceguo98

So-called green taxes, which exact a price for the use of polluting or nonrenewable fuels, are having a positive effect on the environment and natural resource base of countries as varied as China, the Netherlands, and Hungary.

a.  as varied as
b. as varied as are
c. as varied as those of
d. that are as varied as
e. that are varied as are

答案A

不明白为什么A正确，为什么B，  C错，

A的比较对象是什么啊？

谢谢

lorrain_cc

countries,,,我觉得as varied as在这里就好像是举例了~~~

cx_ding

据说这是一个举例、解释的固定搭配，A as varied as B, C and D

graceguo98

谢谢，明白了