2. 外语
  3. ______ can send a spaceship into space. A multi-stage rocket refers to ______ .

______ can send a spaceship into space. A multi-stage rocket refers to ______ .

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问题 ______ can send a spaceship into space.
A multi-stage rocket refers to ______ .
选项 A、several rockets which are separated from each other
B、a single rocket with enough fuel
C、the booster which is the biggest and can lift the whole rocket from the ground
D、a rocket with several parts, and each of which can help to push the spaceship into the space
答案D
解析 本题题干问“多级火箭指的是什么”。原文第1段第3、第4和第5句话指出连接在一起的几个火箭，帮助把太空船送到太空。因此选项D. a rocket with several parts, and each of which can help to push the spaceship into the space是正确答案。
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本试题收录于： 大学英语三级B级题库大学英语三级分类
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