With Dr. White' s new idea, the operation on the damaged brain _______.

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• 1The brain operation was made possible mainly by _______.

  A.taking the blood out of the brain

  B.trying the operation on monkeys first

  C.having the blood go through a machine

  D.lowering the brain' s temperature

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• 2The biggest difficulty in operating on the damaged brain is that _______.

  A.the time is too short for doctors

  B.the patients are often too nervous

  C.the damage is extremely hard to fix

  D.the blood-cooling machine might break down

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• 3The author seems to believe that ___________.

  A.having brothers and sisters is fun

  B.it’s tiring to look after three children

  C.every child needs parents’ full attention

  D.parents should watch others’ children.

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• 4What is one of the changes the author finds in her children、

  A.Tom has less difficulty in speaking.

  B.Sam holds her hand more often.

  C.The boys become better followers.

  D.The daughter acts like a leader.

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• 5Right after McKenzie came back, the other children were _____________.

  A.happy

  B.curious

  C.regretful

  D.friendly

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• 6What is the right order of the steps in the operation、

  A.send the cooled blood back to the brain

  B.stop the blood to the brain

  C.have the blood cooled down

  D.operate on the brainA.a,b,c,dB.c,a,b,dC.c, b, d, aD.b, c, d, a

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