题目内容：
How long do children usually stay at university in the man’s country?
A．Three or five years． B．Three or four years．
C．Three to four years．
参考答案：
答案解析：
单选题：How long do children usually stay at university in the man’
- 题目分类：公共英语二级
- 题目类型：单选题
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B．Three or four years．
C．Three to four years．