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Since the introduction of the new technique, the production cost______greatly.A、
Since the introduction of the new technique, the production cost______greatly.A、
游客
2023-10-04
16
管理
问题
Since the introduction of the new technique, the production cost______greatly.
选项
A、reduces
B、is reduced
C、is reducing
D、has been redused
答案
D
解析
本题考查的是动词时态和语态的用法。由since引导从句或后跟名词,其主句用现在完成时态。此外,“cost”是“reduce”的宾语。因此应用reduce的现在完成时而且要用被动语态,故选D。
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