A considerable amount of time and money has been invested in_____this system.A、d

游客2025-05-03 8

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

解析各项的意思是：define“定义，详细说明”；imply“暗示，意味”；reduce“减少，缩小，简化”；perfect“完善，修改，使熟练”。空格处的意思是：完善这个系统。

转载请注明原文地址:http://tihaiku.com/zcyy/4059851.html

相关试题推荐

随机试题

最新回复(0)

Aconsiderableamountoftimeandmoneyhasbeeninvestedin______thissystem.