The title of the passage implies that

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• 1To be beneficial, exercise for older people should

  A.be done in a group.

  B.be done on a daily basis.

  C.involve great difficulty.

  D.increase the heart rat

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• 2The expression "beef up" in paragraph 3 means

  A."control".

  B."strengthen".

  C."operate".

  D."encourage".

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• 3Margaret Barnes thinks that a lack of movement in infancy can

  A.lead to learning troubles later.

  B.cause physical disabilities later.

  C.stimulate the five senses.

  D.bring about changes in the brain.

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• 4Research by Dr. Cameron seems to suggest that exercise can

  A.generate new blood vessels.

  B.change the way a person thinks.

  C.promote brain development.

  D.divert one's attention.

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• 5The baby's chances of developing cancer were said to be

  A.about 11 per cent

  B.around 19 per cent.

  C.less than 25 per cent.

  D.close to 5 per cent.

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