2. 外语
  3. More and more advanced farm machines ______, the agricultural production increased tremendously.

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

admin2010-02-22  67
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://kaotiyun.com/show/dm9K777K
0

专业英语四级

相关试题推荐
随机试题
最新回复(0)