as....as 用语比较级吗？

不行，只能用在同级上。例如：My English is as good as her.
还有一楼回答的不能说he应该用his才对！

1、同级比较
I am as old as you.
2、倍数的
My room is twice as large as yours.
我是英语教师。你对答案满意吧。

同级比较。
I am as tall as he.

可以用的。例如：as twice as...意思是什么的两倍

no...
同级.

不用