A. expensive B. clean and renewable C. difficult to use D. not stable 相关知识点: 试题来源: 解析 B。解析:本题考查风能的特点与绿色环保主题的关系。“clean and renewable”(清洁且可再生的),这是风能受欢迎的原因,符合绿色能源的概念。选项A“expensive”(昂贵的),虽然风能在开发初期可能有成本,但...
Wind energy is considered as a ___ source of energy. A. dirty B. sustainable C. expensive D. inefficient 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“Wind energy is one of the cleanest and most sustainable sources of energy.”,所以风能是一种可持续的能源。反馈 收藏 ...
A. It is expensive to produce. B. It produces greenhouse gases. C. It is a renewable resource. D. It is only available in certain locations. 相关知识点: 试题来源: 解析 C。中文解析:风能的优点之一是它是一种可再生资源,意味着它永远不会耗尽。A 选项说风能生产昂贵,与原文不符;B 选项说风能...
Wind power is a very clean source of energy. This is how wind power works. Wind makes windmills(风车) spin (旋转). When the windmills spin, they make electricity. Then we can use the electricity. A lot of people think that wind power is new, but that’s not true. For thousands of...
Becausewindpowerisgettingmoreandmoreexpensive. 相关知识点: 试题来源: 解析 C 细节理解题。第三段的Firstofall,it'sclean.Windmillsdon'tpollutetheenvironmentatall.Second,wecanusewindpowerforever.Afterall,wewillalwayshavewind.Also,windpowerischeap,andit'sgettingevencheaper.首先,它是干净的。风车根本不会...
When water moves from a high place to a lower place, it can make electricity(电)without pollution. However, people have to build dams(水坝) to use this energy, and building dams is very expensive.Energy from the earth There is heat in the rocks under the earth. Scientists use the heat...
The main advantage of wind energy is that it is ___. A. cheap B. expensive C. dangerous D. difficult to use 相关知识点: 试题来源: 解析 A。风能的主要优点是它便宜。expensive 是昂贵的,不是优点;dangerous 是危险的,不是主要优点;difficult to use 是难使用,也不是优点。反馈 ...
The article presents insights on the use of wind energy to answer energy issues in the U.S. The author cites the plan of the U.S. to boost electricity sourcing from wind energy, wherein he criticizes th...
Wind energy is renewable because ___. A. it never runs out B. it is expensive C. it is dirty D. it is only available in some places 相关知识点: 试题来源: 解析 A。风能是可再生的因为它永远不会用完。expensive 是昂贵的,与可再生无关;dirty 是脏的,不符;only available in some places...
Wind power is a ___ energy source. A. dirty B. clean C. expensive D. dangerous 相关知识点: 试题来源: 解析 B。中文解析:文章中明确提到“Wind power is a clean and renewable energy source.”,即风力发电是一种清洁的可再生能源,所以答案是 B。反馈 收藏...