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______o

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

admin2005-11-28  112
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 本题意为“宇宙中的各种光线从外层空间通过大气层传来，但是太阳的大量辐射能被大气层隔开。”screen off的意思是“隔开”；avoid的意思是“避免”；exclude的意思是“排除”：separate的意思是“使隔开”，其后不跟off。根据题意，只有C项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/7hIO777K
0

考博英语

相关试题推荐
随机试题
最新回复(0)