2. 外语
  3. A、It will help people discover UFOs on Mars. B、It will prove there is oxygen on Mars. C、It will lay the foundation for the safe

A、It will help people discover UFOs on Mars. B、It will prove there is oxygen on Mars. C、It will lay the foundation for the safe

admin2022-11-28  24
问题
选项 A、It will help people discover UFOs on Mars.
B、It will prove there is oxygen on Mars.
C、It will lay the foundation for the safe landing on Mars.
D、It will help astronauts meet the aliens.
答案C
解析 新闻中提到，这个测试的目的在于为宇航员最终登上火星而做好准备。
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大学英语四级

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