题目内容：

It is generally believed that teaching is_____it is a science
A.as are much as B.much an art as C.as an art much as D.as much an art as
为什么是D

优质解答

人们普遍相信教学是一门科学,也是一门艺术.
as...as...中间可以接adj./adv.的原行,也可以接名词,结构如下：
as + much+a/an+n.(可数名词单数)+as...