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科目： 來源：不詳 題型：單選題

___is certain is ___prevention is more important than treatment .
A．It;that B．What;that C．As;whatD．What;what

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科目： 來源：不詳 題型：單選題

The wrong you've done to him is terrible,for__________ you should make an apology to him, I think.
A．thisB．whichC．whatD．that

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科目： 來源：不詳 題型：單選題

Throughout the world__________advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.
A．whoeverB．whateverC．whatD．that

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科目： 來源：不詳 題型：單選題

Whether ways will be found to stop pollution or not is just___________ worries the public.
A．whyB．whichC．thatD．what

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科目： 來源：不詳 題型：單選題

All of the flowers now raised here have developed from those _____ in the forest.    
A．once they grewB．they grew once
C．that once grewD．once grew

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科目： 來源：不詳 題型：單選題

That was the only gate _____ we could rush out and save those _____ were in great danger.
A．that; whichB．which; who
C．through which; whoD．a(chǎn)t which; who

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科目： 來源：不詳 題型：單選題

The captain stood by the window, _____ he could see the top of the tower.
A．whereB．from which
C．from whereD．which

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科目： 來源：不詳 題型：單選題

The cost of sales makes up a large part of the prices that _____. 
A．a(chǎn)re paid for all products
B．a(chǎn)ll products are paid
C．for which all products are paid
D．for all products paid

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科目： 來源：不詳 題型：單選題

---- Is it high time that we _____ on the school building?
---- Yes, it _____.   
A．do some repairs; is B．do some repair; is
C．did some repairs; isD．did some repair; was

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科目： 來源：不詳 題型：單選題

This is the very knife _____ I used to cut apples yesterday.
A．thatB．by whichC．which D．with which

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