首页 诗词 字典 板报 句子 名言 友答 励志 学校 网站地图
当前位置: 首页 > 外语考试 > 职称英语 > 理工类 >

2013职称英语理工类补全短文专项训练(七)(2)

2012-05-21 
职称英语理工类补全短文练习题(7)

  A And others have painful attacks all the time.

  B These signals travel from nerve cells in the injured area,up the spinal cord(脊髓)to the brain,and back down again.

  C It tells us that We are injured and should do something about it

  D They knew little about the process of pain itself.

  E The other message moves at a speed of only 013~meter a second.

  F And they send the second,slower message of pain to the brain.

热点排行