【单选题】【消耗次数：1】
Anewtechnique______,theyieldsasawholeincreasedby20percent.
①
working out
②
having worked out
③
having been worked out
④
to have been worked out
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相关题目
【单选题】
___ is often the case, we have worked out the production plan.
①
Which
②
When
③
What
④
As
【单选题】
______，the boy worked out the problem quickly．
①
As clever he is
②
Clever as he is
③
He is as clever
④
As he is clever
【单选题】
This ATM has been out of service for a few days. It should ____ last week.
①
be fixed
②
have fixed
③
fix
④
have been fixed
【单选题】
This ATM has been out of service for a few days. It should ____ last week.
①
be fixed
②
have fixed
③
fix
④
have been fixed
【单选题】
You _____ her in her office last Friday, she’s been out of town for two weeks.
①
needn’t have seen
②
must have seen
③
might have seen
④
can’t have seen
【单选题】
Having been asked to speak at the convention __________
①
some notes were prepared for Dr. Smith
②
Smith prepared some notes
③
The convention members were pleased to hear Dr. Smith
④
Some notes were prepared by Dr. Smith
【单选题】
We’ll go out as soon as I’ve ____ the kitchen.
①
sent for
②
cleaned up
③
done with
④
worked out
【单选题】
They _ on the programme for almost one week before I joined them, and now we on it as no good results have come out so far.
①
had been working; are still working
②
had worked; were still working
③
have worked; were still working
④
have worked; are still working
【单选题】
It turned out that the children were not _____for the accident.
①
to blame
②
to be blamed
③
to be blaming
④
to have been blaming
【单选题】
-We’ve worked for a long time, what about stopping to have a rest? -_____________________.
①
A. I like it.
②
A. You are wonderful.
③
A. That’s a good idea.
④
very good
随机题目
【单选题】
已知某企业4月、5月、6月、7月的平均职工人数分别为：290人、298人、296人和301人。则该企业二季度的平均职工人数应用()计算。
①
首末折半法
②
简单平均法
③
几何平均法
④
加权平均法
【单选题】
已知各期环比增长速度为2%、5%、8%和7%，则相应的定基增长速度的计算方法为
①
（102%×105%×108%×107%）-100%
②
102%×105%×108%×107%
③
2%×5%×8%×7%
④
（2%×5%×8%×7%）-100%