定向克隆名词解释:对画线部分提问

来源：百度文库 编辑：杭州交通信息网 时间：2024/05/09 09:27:26
It took Mela 21 days to get to the North Pole.
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How long did it take Mela to get to the North Pole.

不对,应该是:
What took Mela 21 days to get to the North Pole?

How long did it take Mela to get to the North Pole?

What does Mela spend 21 days to get to the North Pole?

What took Mela 21 days to get to the North Pole?

How long did Mela to get to the North Pole?

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