2. 外语
  3. A. when it is absorbed by matter B. when it is cloudy C. because they can pass through solid objects D. when the sunrays are fie

A. when it is absorbed by matter B. when it is cloudy C. because they can pass through solid objects D. when the sunrays are fie

admin2014-05-13  66
问题 A. when it is absorbed by matter
B. when it is cloudy
C. because they can pass through solid objects
D. when the sunrays are fierce
E. when a change in the nucleus of an atom takes place
F. when electron rearrangement takes place
X-rays and gamma rays can be used to detect and treat cancer
选项
答案C
解析 根据第三段倒数第二、三句可知，X射线和伽马射线之所以能用来探测和治疗癌症，是因为具有很多能量的X射线和伽马射线能穿透固体。
转载请注明原文地址:https://kaotiyun.com/show/jOQd777K
本试题收录于： 职称英语理工类B级题库职称英语分类
0

职称英语理工类B级

职称英语

相关试题推荐
随机试题
最新回复(0)