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 空格处意思是:1984年,罗纳德·里根总统提议美国为太空探索新时代的到来构建太空实验室。划线单词exploration的意思是“探险,勘探,探测”。各项的意思是:probing“探测术”;revenge“报仇,复仇”;invasion“入侵”;expansion“开展,膨胀”。
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