32.The Russian rocket designer has died.For many years,he ______ as an important assistantThe Russian rocket designer has died.For many years,he ______ as an important assistant to the father of Soviet space program.A.serves B.was serving C.served D.
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32.The Russian rocket designer has died.For many years,he ______ as an important assistant
The Russian rocket designer has died.For many years,
he ______ as an important assistant to the father of Soviet space program.
A.serves B.was serving C.served D.has served
选择D 完成时表示对现在造成的影响
serve as
充当, 担任;为
例如
He has knocked about the world for many years.
他在世界上漂泊多年
希望能帮助到您
选择D.
Russian
Russian
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32.The Russian rocket designer has died.For many years,he ______ as an important assistantThe Russian rocket designer has died.For many years,he ______ as an important assistant to the father of Soviet space program.A.serves B.was serving C.served D.
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