The air we breathe is a mixture of gases. What is air? A. A liquid B. A gas C. A solid D. A powder 相关知识点: 试题来源: 解析 B。我们呼吸的空气是气体的混合物。选项 A 液体错误;选项 C 固体错误;选项 D 粉末错误。反馈 收藏 ...
百度试题 结果1 题目Air,___ we breathe every day, is necessary to life. A. what B. which C. that D. when相关知识点: 试题来源: 解析 B 反馈 收藏
air为先行词,逗号后面的为非限制性定语从句,从句中breathe缺少宾语,所以答案为关系代词。what不能引导定语从句;when作为关系副词在句中做状语;that不能引导定语从句;which是关系代词,能引导限制性和非限制性定语从句。故选B。 结果一 题目 Air,___ we breathe every day, is necessary to life.A.whatB.whichC...
The air we breathe is polluted. What can we do to improve air quality? A. Burn more fossil fuels. B. Plant fewer trees. C. Use more cars. D. Ride bikes or walk. 相关知识点: 试题来源: 解析 D。为了改善空气质量,我们可以骑自行车或步行。A 选项燃烧更多化石燃料会加重污染;B 选项种更...
百度试题 结果1 题目( A )1.-is air important?-Because we need it to breathe. A. Why B. What C. How 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Indoor air quality (ControlHazardous substances (Environmental aspectsHazardous substances (Health aspectsBuildings (Heating, cooling and ventilationThe article offers information about the hazardous chemicals in indoor air. Acrolein is considered as the one of hazardous chemical that comes from the products...
The knife ___ we cut the bread is very sharp. A. with which B. that which C. which with D. which 查看答案和解析>> 科目:高中英语来源:题型:单选题 The collapse (倒塌) of the World Trade Centre has put US economy in a difficult ___. A. occasion B....
Protecting the environment,is everybodys business." Every time I go in the busy streets,always see some throw on the ground of dazzling things:the packing bag of brightly colored,the crush cigarette end,didnt chew clean apple and roll into a mass of waste paper.If everyone so dont speak hyg...
At Learny Land, we love to play, and we believe that games must form part of the educational and growth stage of all children; because to play is to discover, explore, learn and have fun. Our educational games help children learn about the world around them and are designed with love. ...
7.Our teacher asked us toa story about the moon.限据短文内存选择最佳容案A.make upB.make ofWe have been in Australia for three days.We're having a great time here.C.make inD.make outAustralia is the sixth 16 oountry in the world.There is so much to see that it is)8.一Heuethe ...