2. 考研
  3. Smoke particles and other air pollutants are often trapped in the atmosphere, thus forming dirty fog.

Smoke particles and other air pollutants are often trapped in the atmosphere, thus forming dirty fog.

admin2014-03-15  17
问题 Smoke particles and other air pollutants are often trapped in the atmosphere, thus forming dirty fog.
选项 A、constrained
B、caught
C、concealed
D、concentrated
答案B
解析
转载请注明原文地址:https://kaotiyun.com/show/O3hi777K
0

在职申硕（同等学力）英语

相关试题推荐
随机试题
最新回复(0)