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2024-06-17  48
问题 In 1961, NASA has encouraged studies of space-planes that could be built using existing technology. [br] British companies have proposed designs that are more suitable than the X-33 and X-34, but the government does not support it.
选项 A、Y
B、N
C、NG
答案 A
解析 第8段的最后1句，“…but they aye handicapped by a government…”受到了政府部门的阻碍。
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