More and more advanced farm machines ______, the agricultural production increas

游客2023-11-20 59

问题 More and more advanced farm machines ______, the agricultural production increased tremendously.

选项 A、using
B、having used
C、having been used
D、to have been used

答案 C

解析

转载请注明原文地址:https://tihaiku.com/zcyy/3203636.html

相关试题推荐

随机试题

最新回复(0)

Thenewwashingmachinesare______attherateoffiftyaday.A、turnedupB、tur