2. 外语
  3. (During the) first 20 years of the space age, the United States spent (more than) 90billion dollars (onto) its civilian (and) mi

(During the) first 20 years of the space age, the United States spent (more than) 90billion dollars (onto) its civilian (and) mi

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问题 (During the) first 20 years of the space age, the United States spent (more than) 90billion dollars (onto) its civilian (and) military space programs.
选项 A、During the
B、more than
C、onto
D、and
答案C
解析
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