Tom is the age of jim A.twice B.as oldTom is the age of jim A.twice B.as old as选什么
问题描述：
Tom is the age of jim A.twice B.as old
Tom is the age of jim A.twice B.as old as选什么
答
A
这是倍数句型
【倍数+ the+ 名词+ of+ 被比对象】
再如：
This playgound is twice the size of that one.
比较：
Tom is as old as Jim.
如不明白请追问,要是满意请【采纳】
祝学习进步