49. Why do some fish produce electricity?①To have fun.②To attack others.③To look for food.④To protect themselvesA.①②B.①③C.②④D.③④ 相关知识点: 试题来源: 解析 D.③④ 一些鱼类,例如电鳗,会产生电,主要用于捕食和防御。它们利用电场来寻找食物,并通过强烈的电击来保护自己免受捕食者...
因此,正确答案是 C. °led2°led4。 反馈 收藏
Some people suggest that a country should try to produce all the food for its population and import as little food as possible. To what extent do you agree or disagree? Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write at least 250 ...
1996. "Why manufacturing firms produce some electricity internally," Policy Research Working Paper Series 1605, Washington DC: World BankLee, Kyu Sik, Alex Anas, Satyendra Verma, and Michael Murray. 1996. "Why Manufacturing Firms Produce Some Electricity Internally." Policy Research Working Paper ...
更多“Why can not the electric eel produce electricity for very long?”相关的问题 第1题 回答题:Looking to help the environment? Consider the following simple ideas.Turn off elec 回答题: Looking to help the environment? Consider the following simple ideas. Turn off electrical devices when they...
Notice Which Strategies Work and Which Don’t7.As you proceed with your learning,you should be on the lookout for what works and what doesn’t.Once you have identified the strategies that work best for you, continue to use them. At the same time, watch out for strategies that aren’t ...
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He nowpowers his factory with cactus gas(气体).The cost to produce the gas is half the cost of electricity. Soon, the gas produced byNopalimex will also be used in cars. Nopalimex’s gas is made byusing the prickly pear(刺梨)—akind of cactus. To make the gas,...
TL;DR (Too Long; Didn't Read) The citric acid in citrus fruits is an electrolyte that allows electricity to flow between electrodes made from dissimilar metals. What's an Electrolyte? Whether you know what they are or not, your body uses electrolytes constantly to transmit the electrical impu...
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