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科目： 來源：不詳 題型：單選題

________ fire,all exits must be kept clear.
A．In place ofB．Instead ofC．In case ofD．In spite of

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科目： 來源：不詳 題型：單選題

I have offered to point the house          a week’s accommodation.
A．in exchange forB．with regard to
C．by means ofD．in place of

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科目： 來源：不詳 題型：單選題

Which is the longest bridge ______the Changjiang River , do you know ?
A．through B．a(chǎn)cross C．onD．over

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科目： 來源：不詳 題型：單選題

______the sales of computers up by 20%every year ,our company is becoming larger .
A  As     B  For   C  With   D  Through

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科目： 來源：不詳 題型：單選題

The lecture begins at 9 tomorrow morning .So I have to be at the hall ____8:40 pm. at the latest.
A until   B after    C by    D around

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科目： 來源：不詳 題型：單選題

He thought the jar made of earth _____little value and let me have it ____only one dollar .
A with; for  B of; for  C of ;by   D with ; by

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科目： 來源：不詳 題型：單選題

Although _______ my opinion,the old professor didn’t come up with his own.
A．a(chǎn)gainstB．onC．forD．in

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科目： 來源：不詳 題型：單選題

People try to avoid public transportation delays by using their own cars,and this___creates further problems.
A．in shortB．in case
C．in doubtD．in turn

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科目： 來源：不詳 題型：單選題

Experts have been warning___of the health risks caused by passive smoking.
A．a(chǎn)t a timeB．a(chǎn)t one time
C．for some timeD．for the time

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科目： 來源：不詳 題型：單選題

.Some students often listen to music___classes to refresh themselves.
A．betweenB．a(chǎn)mong
C．overD．during

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