2013
高考英语二轮（阅读理解）能力提升演练（07）及答案 （******） it is difficult for doctors to help a person with a hurt brain. without enough blood, the brain lives only three to five minutes. sometimes the hurt brain gets better by itself. more often the doctors can't fix the hurt. sometimes they are afraid to try something to help. it is dangerous to work on the brain. the doctor might make the person worse if he works on the brain. dr robert j.
