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NASA's Constellation Programme would be cancelled mainly because______
A.there were more important space missions
B.the space agency lacked funding for the programme
C.the current shuttle missions would continue
D.Congress failed to pass President Obama's budget

A.there
B.the
C.the
D.Congress

【参考答案】

A
解析:推理题。由“Using a broad range of criteria,an independent review panel determined that even if fully funded,NASA’s program to repeat many of the a......

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