2. 职称英语
  3. (During the) first 20 years of the space age, the United States spent (more than

(During the) first 20 years of the space age, the United States spent (more than

游客2025-02-09  28
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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