英语题,急求答案及解析

问题描述:

英语题,急求答案及解析
It is generally believed that teaching is ______it is a snience.
A an art much as
B much an art as
C ans an art much as
D as much an art as
能告诉我选什么和为什么选吗

D
as..as用在比较级的时候中间接的是adj./adv.
如果要加名词的话..名词要放在adj.后..
as + adj. + a/an + n.+as