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）
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.