根据Whenyoulookatthenightsky,whatyouseeareactuallylotsof"powerplants".Everystarmakesahugeamount(大量的)ofenergythroughunclearfusion(核聚变).(当你仰望夜空时,你看到的其实是许多"发电厂"。每颗恒星都可以通过核聚变产生巨大的能量。)可推测"power plants"指代的是天上的星星。故选C。(2)细节理解题。根据The...
相关知识点: 试题来源: 解析 C。中文解析:文章中提到“Factories and power plants release large amounts of pollutants into the air.”,所以工厂和发电厂向空气中释放大量污染物。A 选项干净的空气错误;B 选项水错误;D 选项氧气错误。反馈 收藏
In thermal power plants, what is used to heat water and produce steam? A. Wind. B. Solar energy. C. Coal, oil, or gas. D. Water. 相关知识点: 试题来源: 解析 C。解析:文中明确提到 thermal power plants use coal, oil, or gas to heat water and produce steam.反馈 收藏 ...
16, 3 (focus)onordinarypeoplewhoaretherestorers(修复者)ofrelicsandantiquities(古董). Thestoriesaretold 4 aslowandrelaxedpace, 5 (reflect)therestorers?work. Restorationofculturalrelicsandantiquescanbetime-consuming,andsometimesboring.Yetthese restorers?patienceandpeaceofmindare 6 (especial)preciousinasoc...
Solar radiation is used to produce thermal energy. For this purpose, many reflectors are used which concentrate the solar radiation on absorbers. The heat energy created due to solar radiations is used to make steam. The steam possesses kinetic energy.
A. Polluting the ground water. B. Protecting the habitats of plants and animals. C. Damaging the local natural balance. D. Attracting birds and insects to the area. 相关知识点: 试题来源: 解析 C 解析:细节理解题。根据第三段中的“The placement of the power plant may have longterm eff...
根据第一段“When you look at the night sky, what you see are actually lots of ‘power plants’. Every star can make a huge amount of energy through nuclear fusion (核聚变)”可知,当你仰望夜空时,你看到的其实是许多“发电厂”。每颗恒星都可以通过核聚变产生巨大的能量,所以“power plants”指代...
B. Problems of waste disposal and pollution control. C. Future growth of nuclear power. D. Sufficient supply of oil and natural gas. 相关知识点: 试题来源: 解析 B 短文第二段最后一句说,自从二十世纪六十年代开始,由于以煤炭做燃料的电站造成的污染和废物处理问题,使其吸引力降低了。反馈 收藏 ...
Jines, Erin
Researchers have identified two isotopes of hydrogen as the most promising fuel sources for fusion power plants. However, there is a real drawback. They both produce large amounts of radioactive material in the fusion reaction. But helium-3 fusion produces no radioactive material. In fact, one...