2. 外语
  3. Rain clouds are characterized primarily by ______. The passage implies that, in order for rain to fall, it’s necessary for wate

Rain clouds are characterized primarily by ______. The passage implies that, in order for rain to fall, it’s necessary for wate

admin2014-10-09  25
问题 Rain clouds are characterized primarily by ______.
The passage implies that, in order for rain to fall, it’s necessary for water vapor to ______.
选项 A、turn to ice crystals
B、collect on solid particles and condense
C、condense on salt particles
D、rise above the lower level of clouds
答案B
解析 短文第一段提及water vapor主要围绕固体小颗粒而形成，然后在第二段又谈及water vapor在盐颗粒上冷凝。这其实也是下雨的基本原理：水汽首先凝结在——些固体小颗粒上，然后冷凝结冰，形成水珠，到一定程度积累后就落下雨了，故选B。
转载请注明原文地址:https://kaotiyun.com/show/ZYYK777K
本试题收录于： 大学英语三级A级题库大学英语三级分类
0

大学英语三级A级

大学英语三级

相关试题推荐
随机试题
最新回复(0)