单项选择题
A new technique _____, the output as a whole increased by 20 percent.
A．working out
B．having worked out
C．to have been worked out
D．having been worked out
点击查看答案
<上一题
目录
下一题>
热门
试题
单项选择题
Tom`s bedroom was in a _____, for books and papers were here and there.
A．litter
B．disorder
C．rubbish
D．mess
点击查看答案
单项选择题
I`d like to see him in my office _____ he arrives.
A．for the moment
B．the moment
C．in a moment
D．at any moment
点击查看答案
相关试题
60（）
59（）
58（）
57（）
56（）