Since the introduction of the new technique, the production cost ______ greatly.

游客2024-07-23 42

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 reduced

答案 D

解析本题测试的是动词时态和语态的用法。由since引导从句或后跟名词，其主句要用现在完成时态。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。

转载请注明原文地址:https://tihaiku.com/zcyy/3690337.html

相关试题推荐

随机试题

最新回复(0)

Themostsignificantfeatureisthatoilproductionwillincreasesharplyin