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【单选题】
月球是距离地球最近的天体，但是如何从地球飞到月球并不是一个简单的问题，虽然早在30多年前阿波罗航天员就已经登上月球，但是今天人类重返月球不能简单地重复阿波罗登月的方式。因为今天人类重返月球比当年阿波罗登月要复杂和困难，不仅飞往月球的人数比阿波罗飞行要多得多，而且人们到达月球后不是简单地进行探险和考察，而是要在月球上建造基地，要对月球进行全面的开发和利用，还要在月球上长期地工作和生活。 这段文字旨在说明（ ）。
A.
人类重返月球所肩负的使命更艰巨
B.
人类重返月球所面临的环境更加复杂
C.
人类登月的目的是开辟新的生存空间
D.
人类对月球的开发和利用尚待时日
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皮皮学刷刷变学霸
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【单选题】Why didn’t the dogs dare to get their food back ?
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【单选题】Why does the woman think people can't have dogs in their apartments?
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A.
Because the dogs didn’t know who steals.
B.
Because Cranberry is the leader of the group.
C.
Because the dogs weren’t hungry.
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查看完整题目与答案
【单选题】Why does the woman think people can't have dogs in their apartments?
A.
As her host mother doesn't like dogs.
B.
As dogs are really small.
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As their apartments are tiny.
D.
As there are too many dogs around the city.
查看完整题目与答案
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connection
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