If someone has an accident and can no longer walk, scientists might be able to use stem cells to ______ the damaged cells and allow that person to walk again.

试卷相关题目

• 1A doctor was___________when Mother fell ill.

  A.called in

  B.called up

  C.call upon

  D.called at

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• 2That young man ____ you with neglecting your duty.

  A.charged

  B.changed

  C.ordered

  D.Told

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• 3I ____ what he said, but I don't _____ him.

  A.believe, believe in

  B.trust, believe

  C.believe in, credit

  D.depend on, believe in

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• 4May I ____ your dictionary for a while?

  A.borrow

  B.use

  C.lend

  D.look up

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• 5Believe it or not, it ____ to me that you are all mistaken about such dat

  A.A.appears

  B.seem

  C.seemed

  D.Appeared

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• 6Mary said she didn't care anything about John, but her red face________.

  A.gave her away

  B.put her away

  C.got her away

  D.threw her away

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• 7I tried to telephone you, but I couldn't ____________.

  A.look through

  B.go through

  C.see through

  D.get through

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• 8It is hard to imagine smells _____ when a film is shown in the future.

  A.are given away

  B.are put away

  C.are sent out

  D.are given out

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• 9You'll have to _____ tickets early if you want to watch the football match.

  A.receive

  B.book

  C.accept

  D.Give

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• 10You must go there at once because the situation ________ prompt action.

  A.calls for

  B.calls back

  C.calls at

  D.calls on

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