A. suffer from a stroke B. will be affected C. change their lifestyles D. will take place E. occurs at the back of h

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问题    A. suffer from a stroke
   B. will be affected
   C. change their lifestyles
   D. will take place
   E. occurs at the back of his/her brain
   F. controls various body functions
When a stroke occurs, the arteries leading to and within the brain ______.

选项

答案B

解析 根据第二段我们知道应该选B。选项A的主语应该是人,而本句的主语是brain,因此A不能选,是干扰项。
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