题型：阅读选择 题类：真题 难易度：普通
The woman says, “I don't know, doctor, but let me think about it.” She thinks for a few minutes and then says, “Yes, I know now, doctor! When I marry(结婚), I am eighteen years old, and my husband is thirty. Now my husband is sixty. And that is twice(两倍) thirty. So I am twice eighteen. That's thirty-six, isn't it?”
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