2. 外语
  3. In 1984, President Ronald Reagan proposed that the United States construct a launch laboratory for a new era of space exploratio

In 1984, President Ronald Reagan proposed that the United States construct a launch laboratory for a new era of space exploratio

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问题 In 1984, President Ronald Reagan proposed that the United States construct a launch laboratory for a new era of space exploration.
选项 A、probing
B、revenge
C、invasion
D、expansion
答案A
解析 probing探测术；revenge报仇，复仇；invasion入侵；expansion扩展，开展，膨胀；exploration探险，勘探，探测。
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