题目Solar energy is a clean energy source. How many hours of sunlight are needed to generate a certain amount of electricity? A. 4 hours B. 6 hours C. 8 hours D. 10 hours 相关知识点: 试题来源: 解析 C。短文中提到太阳能产生一定电量通常需要 8 小时的阳光照射。选项 A4 小时、选项 B6 ...
百度试题 结果1 题目The problem now is how to make wide use of solar energy. A. discussed B. discussing C. being discussed D. to have been discussed 相关知识点: 试题来源: 解析 C 反馈 收藏
百度试题 结果1 题目【题目】根据句意及中文提示完成单词。Scientists have done many(研究调查) on how to use the solar energy to protectour environment 相关知识点: 试题来源: 解析 【解析】researches 反馈 收藏
有这样一句话:“How much solar energy will the solar panels transform into electrical energy if the efficiency is 90%?” 想问这句话到底是要求什么,是太阳能还是电能‥我个人觉得是太阳能吧…假如是电能的话, 相关知识点: 试题来源: 解析 求的是solar energy ...
The chart below shows the production and consumption of rice in seven different countries in 2008. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words. Task 1 柱状图 - - 范文 答题 Many people use social media ev...
Why is solar energy cheap?A. Because the sun's rays are free.B. Because there is lots of it.C. Because solar cells are free.D. Because solar cells are cheap to make.5. Why can't solar cells be used in all countries?A. Because there aren't many of them.B. Because they can't...
“This makes Morocco a big 31___ in the field of solar energy in the Arab region and the African continent. It could also be a forerunnerfor many other countries in the world that 32___ on foreign imports of e...
Many countries use fossil fuels (coal, oil,natural, gas) as the main source of energy. However,in some countries people are encouraged to develop the alternative sources of energy (wind energy and solar energy). To what extent do you agree or disagree with this development?
This chapter discusses how to use solar energy. A change of energy from heated water to heated air represents a loss of energy. The solar energy should be collected as close as possible to the source where it will be used. The 48,000 watt-hours are the total heat that escapes into the...
30. In how many ways electricity can be generated from solar energy? There is only 1 way to generate electricity from solar energy There are 2 ways in which we can generate electricity from solar energy There are more than 2 ways in which we can generate electricity from solar energy ...