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A considerable amount of time and money has been invested in ______ this system.
A considerable amount of time and money has been invested in ______ this system.
游客
2025-05-04
38
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问题
A considerable amount of time and money has been invested in ______ this system.
选项
A、defining
B、implying
C、reducing
D、perfecting
答案
D
解析
defining意为“定义”;implying意为“暗示”;reducing意为“减少”;perfecting意为“完善”。本句话意思是:完善这个系统。D项符合题意,如:They worked hard to perfect their dance.(他们卖力地使舞蹈更加完美)。
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