Just like fingerprints, each person's DNA is ________unless he has a twin．

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• 1Your job here is only _____, for you will be removed from it when we have a proper post for you．

  A.permanent

  B.contemporary

  C.temporary

  D.fundamental

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• 2Mary is always ready to do some ______ work at the local geracomium（敬老院）in her spare time.

  A.responsible

  B.exhausting

  C.voluntary

  D.professional

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• 3After great efforts, he finally achieved his goal, _________.

  A.being pleased but excited

  B.pleasant and excited

  C.pleasantly but excitedly

  D.pleased and excited

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• 4The only drawback of the voyage was the ______ sea, which made me very seasick.

  A.calm

  B.rough

  C.patient

  D.tough

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• 5However，at times this balance in nature is _______ resulting in a number of possibly unforeseen effects.

  A.troubled

  B.disturbed

  C.confused

  D.puzzled

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• 6It is difficult for a teacher to give ________ attention to children in a large class．We should reform the situation in order to meet each child's needs．

  A.private

  B.personal

  C.individual

  D.single

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• 7I think you should go back to your ________ plan, which is much more practical than the present one．

  A.random

  B.abstract

  C.original

  D.ridiculous

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• 8No one can deny that it is ______ that many more residents could have been injured if the building had fallen at midnight.

  A.particular

  B.curious

  C.likely

  D.fortunate

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• 9He tried to tell himself to keep calm instead of being angry. It is ________. 

  A.extreme

  B.frightening

  C.useless

  D.stubborn

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• 10The patient is supposed to go to the hospital for_____checks．

  A.common

  B.normal

  C.regular

  D.usual

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