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科目： 來源：不詳 題型：單選題

Science and technology have ____in important ways to the improvement of agricultural production.
A．a(chǎn)ttachedB．a(chǎn)ssistedC．contributedD．witnessed

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科目： 來源：不詳 題型：單選題


Usually children are allowed to ______ when they are six years old.
A．a(chǎn)ttend schoolB．a(chǎn)ttend the school
C．join schoolD．join the school

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科目： 來源：不詳 題型：單選題


In the experiment you should keep a watchful eye ______ the developments and record every detail.
A．inB．a(chǎn)tC．forD．on

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科目： 來源：不詳 題型：單選題


You have made a few mistakes in your composition but ______ you have done well.
A．a(chǎn)s a wholeB．on the whole
C．on the other handD．generally speaking

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科目： 來源：不詳 題型：單選題


We congratulated him ______ his getting a gold medal.That is to say: we offered him our congratulations ______ his getting a gold medal.
A．a(chǎn)t;onB．of;onC．on;forD．on;on

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科目： 來源：不詳 題型：單選題


The delicious food at the hotel ______the uncomfortable rooms,so nobody complained.
A．made up forB．made up
C．tried outD．made up of

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科目： 來源：不詳 題型：單選題


Some policemen were sent there to ______ the villagers ______ down the trees.
A．keep;cuttingB．prevent;cutting
C．prevent;to cutD．stop;to cut

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科目： 來源：不詳 題型：單選題


The workers are busy with the repairs of the temple,which is ______.
A．out of dangerB．dangerC．in dangerD．of danger

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科目： 來源：不詳 題型：單選題

Mary wanted to travel around the world all by herself, but her parents did not _______ her to do so.
A．forbidB．a(chǎn)llowC．followD．a(chǎn)sk

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科目： 來源：不詳 題型：單選題

In this factory, suggestions often have to wait for months before they are fully _____.
A．a(chǎn)dmittedB．a(chǎn)cknowledgedC．a(chǎn)bsorbedD．considered

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