It’s difficult for doctors to help a person with a hurt brain. 36 enough blood, the brain

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 es: 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.
【小题1】A．Don’t haveB．WithoutC．Having notD．Only with【小题2】A．forB．afterC．inD．since【小题3】A．wayB．brainC．doctorD．man【小题4】A．too coolB．enough coolC．cool enoughD．that cool【小题5】A．a longerB．enoughC．a shorterD．another【小题6】A．medicineB．mannersC．ideaD．brain【小题7】A．BesidesB．InsteadC．HoweverD．First【小题8】A．to B．acrossC．throughD．onto【小题9】A．heatB．temperatureC．coolnessD．feeling【小题10】A．cooledB．operatedC．warmedD．stopped【小题11】A．the same asB．different fromC．used toD．cleverer than【小题12】A．was taughtB．was teachingC．was to teachD．had taught【小题13】A．other peopleB．human beingsC．other thingsD．more people【小题14】A．doesn’t have toB．needn’tC．will be able toD．is afraid to【小题15】A．startB．takeC．makeD．begin【小题16】A．losesB．goesC．killsD．dies【小题17】A．noB．a deadC．a livingD．a lively【小题18】A．get B．acceptC．keepD．try【小题19】A．soon B．quickly C．slowlyD．rapid【小题20】A．use forB．wrong withC．value toD．problem withB【小题1】C【小题1】A【小题1】C【小题1】A 【小题1】C【小题1】D【小题1】C【小题1】B【小题1】C 【小题1】 A【小题1】D【小题1】B【小题1】A【小题1】A【小题1】 D【小题1】C【小题1】D【小题1】B【小题1】D