Some circuits won’t operate properly if the battery is connected backwards. But with a household electrical outlet, electricity will flow even if you reverse the left and right prongs of the plug. Since electricity in an AC current flows in both directions, the magnitude of the electricity ...
What is an Electric Vehicle? An electric vehicle (EV) is a car that runs entirely or partially on electricity instead of gasoline. The electricity is stored in reusable batteries and used to power an electric motor that turns the wheels. Electric vehicles are categorized as follows: Battery Ele...
In summary, the current increases with the number of electrons moving through an object per time. Frequently Asked Questions What is an electric charge? Electric charge is a fundamental property of subatomic particles that determines their behavior when interacting with an electric or magnetic field....
If an electricity accident happens, do you know what to do? It is important for teenagers to learn the rules of electricity safety. 16. F Yesterday, Tom saw his sister getting an electric shock. He was afraid but remembered what the teacher taught him when an electrical accident happens. ...
A. What B. What a C. What an D. How 相关知识点: 试题来源: 解析 [答案]D [详解]句意:玩电是多么危险啊! 考查感叹句。根据“!”可知,该句为感叹句,根据“dangerous”可知,该句的句型结构是:How+形容词+主语+谓语+其它。故选D。结果一 题目 ___ dangerous it is to play with electricity...
Copper, an excellent conductor. It has become more expensive in recent years and is now mainly used in smaller applications. Aluminum, a good conductor of heat and electricity. Due to its low price most wiring is now made of aluminum. ...
Utilities are usually asset-backed services, and many companies in the sector are starting to produce these assets – like electricity – using renewable energy sources such as wind and solar power. As more consumers take an interest in renewable energy, this can provide a growth opportunity for...
【题目】___ important energy electricity is in our daily life now! A.HowB.WhatC.What aD.What an 试题答案 在线课程 【答案】B 【解析】 句意:电在我们的日常生活中有多么重要! 考查感叹句。英语感叹句由what和how引导,what后面跟名词,how后面跟形容词或副词。具体构成如下:(1)what + a/an+形容词...
___ important electricity is in our life!A: How B: What C: What a D: What an相关知识点: 试题来源: 解析 A 结果一 题目 )4.important electricity is in our daily life!A. WhatB. What anC. HowD. How an 答案 C 结果二 题目 227. ___ important news is in our daily life! A. ...
)41. ___necessary electricity is in our life! A. How B. What C. What a D. What an 答案 答案:A核心短语:necessary:必须的翻译:电在我们的生活中多么必要啊!解析:how和what均可引导感叹句,其中how强调修饰词,what强调名词,“how+形容词+(a/an)+(名词)+其他”和“what+(a/an)+(形容词)+名词...