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

admin2013-05-28  47

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 可借助搭配句意直接确认答案C。也可借助原文(X—rays,gamma rays作为答案线索词),在第三段倒数第三句找到答案相关句:X—rays and gamma rays have so mush energy that they travel rightthrough solid objects.They can be used to detect and treat cancer.
转载请注明原文地址:https://kaotiyun.com/show/FaQd777K
0

最新回复(0)