2. 外语
  3. Cosmic rays of various kinds come through the air from outer space, but enormous quantities of radiation from the sun are ______

Cosmic rays of various kinds come through the air from outer space, but enormous quantities of radiation from the sun are ______

admin2013-01-10  50
问题 Cosmic rays of various kinds come through the air from outer space, but enormous quantities of radiation from the sun are ______ off.
选项 A、avoided
B、excluded
C、screened
D、separated
答案C
解析 C项screen off“隔开”。A项avoid“避免”；B项exclude“排除”；D项separate“使隔开”，其后不跟off。译文：宇宙中的各种光线从外层空间透过大气层，但是太阳的大量辐射能被大气层隔开。根据题意，应选C项。
转载请注明原文地址:https://kaotiyun.com/show/uYTO777K
0

研究生英语学位课统考（GET）

相关试题推荐
随机试题
最新回复(0)