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 本题中,exploration的意思是“探险,勘探,探测”。四个选项中,probing的意思是“探测术”;revenge的意思是“报仇,复仇”;invasion的意思是“入侵”;expansion的意思是“展,开展,膨胀”。只有A项符合题意。
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