可以be as adj as吗可以be so adj as 吗（两个问题）

可以be as adj as吗
可以be so adj as 吗
（两个问题）

都可以. 意义不同

可以用be as adj. as,可以用be not as adj. as。
例如：He is as old as I.
He is not as old as I.