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科目： 來源：不詳 題型：單選題

The recent research attempts to      the effectiveness of different drugs used for the new virus.
A．coverB．guaranteeC．estimateD．evaluate

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科目： 來源：不詳 題型：單選題

He didn’t make ______ at all in yesterday’s negotiation. What happened to him?
A．a(chǎn)n apologyB．a(chǎn) changeC．a(chǎn)n appearanceD．a(chǎn) promise

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科目： 來源：不詳 題型：單選題

You’d better ______ your flight reservation at the latest 3 days in advance.
A．confirmB．conveyC．considerD．convince

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科目： 來源：不詳 題型：單選題

“An awful accident ___, however, occur the other day.” The old man repeated, trembling all over.
A．doesB．didC．hadD．has to

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科目： 來源：不詳 題型：單選題

The window _________ a beautiful view out over the river.
A．coversB．sparesC．a(chǎn)ppliesD．Affords.

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科目： 來源：不詳 題型：單選題

We _____ know things about each other that we should not know, have no right _____, and have a right, actually, not to know.
A．increasingly; to knowB．decreasedly; knowing
C．increasingly; knowD．decreasingly; knew

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科目： 來源：不詳 題型：單選題

The best way to get a serious point ____ without causing offense is ____ humour.  
A．a(chǎn)cross; withB．out; within C．a(chǎn)cross; in D．down; by

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科目： 來源：不詳 題型：單選題

China's badminton superstar Lin Dan won a thrilling final for his fifth world champion in Guangzhou on Sunday over Lee Chong Wei, who ______ his game due to injury.
A．concernedB．recovered C．a(chǎn)bandonedD．recognized

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科目： 來源：不詳 題型：單選題

Traditionally, college students hold a graduation ceremony to encourage themselves before they ______ on their life journey.
A．get throughB．give upC．set offD．settle down

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科目： 來源：不詳 題型：單選題

In a courtroom it is sometimes difficult to ______ who is innocent and who is guilty．
A．distributeB．developC．designD．distinguish

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