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The necessary device in the event of a power failure is not _______ installed du
The necessary device in the event of a power failure is not _______ installed du
游客
2025-06-19
19
管理
问题
The necessary device in the event of a power failure is not _______ installed due to the lack of a budget.
选项
A、seldom
B、never
C、meanwhile
D、yet
答案
D
解析
空格内应填入副词,但所有选项都是副词。如果填入A选项或B选项,就变成两个表示否定的词连在一起,意思不通。D选项在词义上是最合适的。not yet是“还没有……”的意思。
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