2. 职称英语
  3. Air is composed of ______ gas including hydrogen, oxygen and carbon dioxide.A、va

Air is composed of ______ gas including hydrogen, oxygen and carbon dioxide.A、va

游客2024-10-08  8
问题 Air is composed of ______ gas including hydrogen, oxygen and carbon dioxide.
选项 A、varied
B、variant
C、variable
D、various
答案 D
解析 题型：语法题。本题的大意是空气是由氢气、氧气和二氧化碳等各种各样的气体组成的。题意为：空气由不同气体混合组成。varied：consisting of or including many different kinds of things or people，especially in a way that seems interesting. 各种各样的：具有或由许多种类和形式组成的。variant (n. adi)；something that is slightly different  from the usual form of something. 指同常规事物有些许差异的，变异的。variable：易变的：可能变化或改变的；服从变化的；可变的；反复无常的；无常的various指的是种类不同的，不一样的，各式各样的。
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