What does hydro energy use to generate electricity? A. The power of wind. B. The power of sunlight. C. The power of flowing water. D. The power of fossil fuels. 相关知识点: 试题来源: 解析 C。中文解析:水能利用流动水的力量发电。A 选项风能错误;B 选项太阳光错误;D 选项化石燃料错误。
【解析】A make 制造;B cause 造成,引起;C lead 带领,引领;D catch 抓住。“The use of electricity”的意思是“电的使用”,“air pollution”的意思是“空气污染”,根据四个选项中动词的意思,可知选项B的“cause”符合语境,即电的使用不造成污染。 选B。反馈...
That price does not make the ORPC system competitive with natural gas. However, for small rural communities, diesel (柴油) energy can cost more than $ 1 per hour. (绍尔估计ORPC目前的价格约为每千瓦时50美分。这个价格并不能使ORPC系统与天然气竞争。但是,对于小型农村社区、柴油(柴油)能源成本...
A. Solar energy B. Electricity C. Petrol D. Wind E. nergy 相关知识点: 试题来源: 解析 C。汽车通常使用汽油作为能源。选项 A 太阳能一般用于太阳能汽车,目前并不普遍。选项 B 电力通常是电动汽车使用,不是一般汽车常用能源。选项 D 风能一般不用于汽车。反馈...
How to Estimate the Energy Consumption of a Fan If you want to better understand how much energy your fans are using, there are some formulas you can use. You can get your answer by multiplying the watts used by the hours it is in use. The electricity usage of a fan depends on its...
(Provided by Lu Yiwei from Class One, Grade Seven)Electricity is very important in our life. It is a form. of energy. People use it in many different ways. We can use electricity to drive machines. We use washing machines and kettles at home. We use printers in an office....
Your most recent utility bills should give you the most accurate cost per kWh of electricity, therm of gas, or gallon of oil or propane. There are tons of heating and cooling cost calculators floating around on Google, though not all of them are very accurate. The best one we’ve found...
ElectricityElectricity is a kind of energy. It gives us power andflows through wires. We use electricity in hundreds ofways every day. We use it to watch TV,play computergames,see a film and read books at night. Fridges,washing machines and rice cookers can't work withoutelectricity. Electr...
Size or capacity (tonnage);primary factor.The bigger the heat pump, the more power it will need to run.Example:4-ton heat pump will use more electricity than a 2-ton unit. Cooling energy efficiency (SEER rating);primary factor for cooling.The more efficient the heat pump, the fewer watts...
Solar generators use the sun’s energy to generate electricity, offering a clean and quiet alternative to traditional gas generators. TheEcoFlow DELTA Pro 3, with its solar charging capabilities, provides a silent and environmentally friendly solution on its own. Or, increase its versatility by inte...