填空题

Is there any influence on the plan because of the columbia disaster Why and Why not

【参考答案】

No, NASA remains focused on the long-term priorities of spac......

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Besides the main missions stipulated by NASA what would the orbiter also be used as
单项选择题
A．He is a film director of Science Fiction.B．He is a writer of Science Fiction.C．He is a scientist who researches on how to freeze a body and bring it back to life later.D．He is a doctor who treats terminal illnesses.
A．He is a film director of Science Fiction.
B．He is a writer of Science Fiction.
C．He is a scientist who researches on how to freeze a body and bring it back to life later.
D．He is a doctor who treats terminal illnesses.
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