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【单选题】
下列运输,成本最低的是( )
A.
铁路运输
B.
航空运输
C.
水路运输
D.
公路运输
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参考答案:
举一反三
【简答题】We ______ (not reach)an agreement yet.
【单选题】The couple work in their garden every morning, ______ for a weight loss.
A.
hoping
B.
hoped
C.
to hope
D.
hope
【单选题】We did the job as fast as we could, ___ to finish it earlier.
A.
hoping
B.
to hope
C.
hoped
D.
being hoped
【单选题】We walked as fast as we could, _______ to catch the 9:30 train.
A.
hoping
B.
to hope
C.
we hoped
D.
being hoped
【单选题】We hoped to reach Hong Kong ________ Monday morning, but we didn’t arrive ________ Tuesday evening.
A.
on, on
B.
in, until
C.
in, in
D.
on, until
【单选题】遥控无人机复飞时,正确的操纵方式是
A.
迅速推满油门,同时快速拉杆转入爬升
B.
保持油门,快速拉杆转入爬升
C.
柔和地加满油门,保持好方向,同时柔和拉杆使飞机逐渐转入爬升,保持好爬升状态
【单选题】We had hoped to move into the new house at the end of the month, but things didn't ______ as we had expected. [     ]
A.
show up
B.
work out
C.
take up
D.
pick out
【判断题】硫代缩酮在酸性条件下水解,就可以得到相应的酮,因此是常用的酮的保护基。
A.
正确
B.
错误
【单选题】We walked as fast as we could _____ to catch the train.
A.
hoping
B.
to hope
C.
we hoped
D.
being hoped
【多选题】下列选项中,Internet能够提供的服务有______。
A.
文件传输    
B.
电子邮件    
C.
电子布告板    
D.
网上找人
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