根据“Air is a mixture of gases that you breathe.”(空气是你呼吸的气体的混合物。)可知 “Air is a mixture of gases”(空气是气体的混合物)正确。 根据“You cannot see, smell or taste air but it is around you.”(你看不见、闻不到也尝不到空气,但它就在你周围。)可知 “You cannot see t...
Which statement best supports the fact that air is a mixture and not a compound? B A Air contains different elements. B Air can be separated by physical methods. C The composition in air remains constant throughout the world D The water vapour is a chemical compound. 相关知识点: 试题来...
Why is air sometimes considered as an asymmetric mixture? View Solution Give three reasons why air is considered a mixture and not a compound. View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths ...
解答答案:mixture 根据a___of gases,可知应该用名词形式.mix,动词,混合.名词形式,mixture,混合物.a+可数名词单数,故填:mixture. 点评本题主要考查可数名词单数,名词形式,mixture,混合物.a+可数名词单数,要注意名词形式. 练习册系列答案 快乐练练吧云南科技出版社系列答案 学...
What the plants pump through the air is a mixture of chemicals known as volatile organic compounds, vocs for short. 2017年高考英语全国卷2 阅读理解 阅读D 原文 When we touched down to blue skies and warm air, I sent up a small prayer of gratefulness. 2015年高考英语全国卷1 阅读理解 阅读B...
解析 答案见上【句意】空气是一种有一定数量固体和液体的 气体混合物。 【知识点拨】本题主要考查可数名词单数,名 词形式mixture混合物.a+可数名词单数,要 注意名词形式。 【分析】根据a..of gases,可知应该用名词形 式.。mix动词,混合。名词形式,mixture,混 合物。a+可数名词单数,故填:mixture 反馈 收藏 ...
a mixture of 答案:a mixture of.考查汉译英.根据句意和所给部分可知这里使用a mixture of"…的混合物".空气是各种气体的融合体.对于汉译英,解题前应快速浏览句子掌握大意,在读懂句子的基础上,结合提供的特定的语言环境去分析.要解决好该题型,离不开坚实的语法知识,有了坚实的语法知识才能对语言进行正确的分析...
英语语法问题We have learned that air is a mixture of gases,___oxygen,water,vapor and carbon dioxide are the most important for what they do.A.whoseB.in whichC.of whichD.where答案选的是C,想问下为什么不能选D,另外介词为什么
It was shown experimentally for the first time that, when an axisymmetric nozzle of special shape is placed in a tube, the shocktodetonation transition in a stoichiometric natural gas-air mixture occurs under normal conditions at a shock wave (SW) velocity at the nozzle inlet exceeding 1150 ±...
百度试题 结果1 题目请判断译文是否恰当:Air is a mixture of gases.译文:空气是多种气体的混合物。A、正确B、错误 相关知识点: 试题来源: 解析 正确 反馈 收藏