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  • 更新 2022-09-03
  • 科目 英语
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It’s difficult for doctors to help a person with a hurt brain.  36  enough blood, the brain can live only three to five minutes. Usually doctors can’t fix the hurt  37  such a short time.
Dr Robert White thinks he knows a  38  of help. He thinks doctors should make the hurt brain  39  to live for 30 minutes without blood. This gives the doctor  40  time to do something for the brain. Dr White experimented his  41  on fifteen monkeys.  42  he taught them to do different jobs. Then he operated on them. He made the monkeys’ blood go  43  a machine. When the brains’  44  was 10℃, he stopped the blood to the brain. After 30 minutes, he turned the blood back on. He  45  the blood again. After their operations, the monkeys were almost  46  before. They were healthy and busy. Each one could still do the job the doctor  47  them.
Dr White’s idea works well on monkeys. He thinks it will work on  48 . He think it will help with heart problems. A person  49  die when his heart stops; doctors can  50  it again. The problem comes: when the brain is without blood for about 5 minutes, it  51 . If doctors start the heart again after 5 minutes, the person has  52  body but a dead brain. Maybe in the future, doctors will  53  Dr White’s idea. When the person’s heart stops the doctor will  54  cool the brain. They will have 30 minutes to start the heart again. Maybe there will be no  55  the brain.

A.Don’t have B.Without C.Having not D.Only with

A.for B.after C.in D.since

A.way B.brain C.doctor D.man

A.too cool B.enough cool C.cool enough D.that cool

A.a longer B.enough C.a shorter D.another

A.medicine B.manners C.idea D.brain

A.Besides B.Instead C.However D.First

A.to B.across C.through D.onto

A.heat B.temperature C.coolness D.feeling

A.cooled B.operated C.warmed D.stopped

A.the same as B.different from C.used to D.cleverer than

A.was taught B.was teaching C.was to teach D.had taught

A.other people B.human beings C.other things D.more people

A.doesn’t have to B.needn’t C.will be able to D.is afraid to

A.start B.take C.make D.begin

A.loses B.goes C.kills D.dies

A.no B.a dead C.a living D.a lively

A.get B.accept C.keep D.try

A.soon B.quickly C.slowly D.rapid

A.use for B.wrong with C.value to D.problem with

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