2. 职称英语
  3. In 1961, NASA has encouraged studies of space-planes that could be built using e

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

游客2023-09-17  63
问题 In 1961, NASA has encouraged studies of space-planes that could be built using existing technology. [br] The best way to finance new space-planes and space stations is______.
选项
答案 to carry tourists
解析 筹措建太空飞机和空间站的资金的最好方式就是运载游览观光者。
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