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科目： 來源：不詳 題型：單選題

A low-carbon lifestyle is of great benefit to improve_____ world environment. Nothing can be enjoyed from it until you have____ deep understanding of it, though.
A．a(chǎn); theB．/; aC．the; /D．the; a

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科目： 來源：不詳 題型：單選題

Some people fear that ______ air pollution may bring about changes in ______ weather around the world.
A．/, the B．the, / C．a(chǎn)n, the D．the, a

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科目： 來源：不詳 題型：單選題

Wouldn’t it be ____ wonderful world if all nations lived in ____ peace with one another?
A．a(chǎn); /B．the; /C．a(chǎn); theD．the; the

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科目： 來源：不詳 題型：單選題

_______ person who is responsible for his work will react quickly in _______ emergency.
A．A; /B．A; anC．The; /D．A; the

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科目： 來源：不詳 題型：單選題

The white-flag dolphin, ______ rare Chinese mammal, is in ___ dangerous state of dying out.
A．the; /B．the ; theC．a(chǎn) ; aD．a(chǎn) ; /

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科目： 來源：不詳 題型：單選題

Jumping out of _____ airplane at ten thousand feet is quite ______ exciting experience .
A．不填；theB．不填；anC．a(chǎn)n；anD．the；the

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科目： 來源：不詳 題型：單選題

According to _______announcement by Guangzhou Price Bureau, _______new measures which have been taken recently are expected to cut the operation costs of each taxi driver by 1280 yuan.
A．the; /B．a(chǎn)n; theC．/; theD．a(chǎn)n; /

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科目： 來源：不詳 題型：單選題

There is no power like _____ power of confidence, and there is no student as competitive as ______ student who trusts his own abilities.
A．the; aB．a(chǎn); theC．/; aD．the; /

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科目： 來源：不詳 題型：單選題

Everything comes with ________price; there is no such _______ thing as free lunch in the world.
A．a(chǎn) , aB．the , /C．the , aD．a(chǎn) , /

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科目： 來源：不詳 題型：單選題

Only through _______ talks can we build trust and only through cooperation can we create ________ win-win economic situation．
A．\ ; aB．the ; theC．\ ; theD．the ; a

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