【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
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___ 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
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①
be fixed
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have fixed
③
fix
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have been fixed
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be fixed
②
have fixed
③
fix
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have been fixed
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①
needn’t have seen
②
must have seen
③
might have seen
④
can’t have seen
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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
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①
sent for
②
cleaned up
③
done with
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worked out
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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
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①
to blame
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to be blamed
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to be blaming
④
to have been blaming
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①
A. I like it.
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A. You are wonderful.
③
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④
very good
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【单选题】
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货主
②
贩运人
③
承运人
④
托运人
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执业兽医
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乡村兽医
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官方兽医
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执业兽医、乡村兽医
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①
官方兽医
②
官方兽医或者工作人员
③
工作人员
④
官方兽医和工作人员