In 1961, NASA has encouraged studies of space-planes that could be built using e

游客2023-09-17 60

问题 In 1961, NASA has encouraged studies of space-planes that could be built using existing technology. [br] Space policy is dominated by polities.

选项 A、Y
B、N
C、NG

答案 A

解析从第4段的第1句可以找到答案，太空政策受到政治的支配。

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