What is the main cause of air pollution in cities? A. Industrial emissions B. Vehicle exhaust C. Waste burning D. Natural disasters 相关知识点: 试题来源: 解析 B。本题考查对城市空气污染主要原因的认识。A 选项工业排放是空气污染的一个原因,但不是主要原因。C 选项垃圾焚烧也会造成空气污染,但不...
DD根据第一段第四、五句A major source of air pollution is the gas fumes from cars. Another major source of dirty air is the burning of coal and oil for energy.可知,城市中空气污染的主要来源是汽车尾气以及为取得能源而燃烧煤和石油造成的污浊空气。故选D [精析]D根据第一段第四、五句A major ...
in a normal night B。 when you are asleep.C。 when you are daydreaming E. when you refuse to show yourself7。 What can be said about one’s personality according to the passage? F. Everyone has one personality。 G. Everyone has two personalities。 . One's personality is unchangeable。
百度试题 结果1 题目According to the passage, what is the main cause of air pollution in big cities? A. Industrial waste B. Vehicle exhaust C. Household garbage D. Agricultural activities 相关知识点: 试题来源: 解析 B 反馈 收藏
Urbanization often brings about environmental pollution. What is one of the main causes of air pollution in cities? A. More green spaces B. Industrial emissions C. Rural migration D. Low population density 相关知识点: 试题来源: 解析 B。本题考查城市化带来的环境污染问题。A 选项“More green ...
On the average, we throw away more trash and garbage than the year before. The burning of garbage leads to air pollution. Many major industries are also the cause of the dirty air in and around cities. The...
A:Why is air pollution such a serious problem?B:1A:What causes air pollution?B:There are many different causes.2 But cars are the biggest source(源头)of air pollution because more and more people are driving cars.In 1994,the world had more than six hundred million cars.By 2025,it may...
Urban air pollution is nothing new--it has existed, in one form or another, for as long as people have lived together in substantial communities. But it was during the 19th century, with the rise of coal-powered industrial steam and increased domestic coal use, that its impact really began...
(5)What is the experiment in the passage mainly about? ___A.The influence of air pollution on pollinating insects.B.Different levels of air pollution in the UK.C.Stresses that insects are facing.D.Causes of air pollution in big cities. 相关...
The effects of air pollution on pollinating insects.Causes of air pollution in big cities. 相关知识点: 试题来源: 解析 1. C2. D3. D4. B5. C 1.本文是一篇说明文。文章通过介绍Ryalls团队的研究实验阐述了空气污染对传花粉昆虫的重大影响。推理判断题。根据“Their study found that air pollution ...