题干

After the new technique was introduced,the factory produced        in 2001 as the year before.

A:as twice many machine

B:twice many as machine

C:as many machines twice

D:twice as many machine

上一题 下一题 0.0难度 选择题 更新时间:2019-09-12 11:50:22

答案(点此获取答案解析)

D