1. Electricity was invented ___. [ ] A. when man had no candles B. about 200 years ago C. to be operating computersD. by Thomse Edison 2. The following things can send out pulses of electricity except ___. [ ] A. electric eels and human heartsB. Electrical generators and animal...
1. Electricity was invented ___. [ ] A. when man had no candles B. about 200 years ago C. to be operating computers D. by Thomse Edison 2. The following things can send out pulses of electricity except ___. [ ] A. electric...
Electricity was invented A. when man ha d no candle S B. about 200 years ago C. to b e operating computers. D. by T homs e Edison57. T h e following things can sen d out pulses of electricity except A. electric eels an d human hearts. B. Electrical generators an d animal ...
56. Electricity was invented ___.A. when man had no candles B. about 200 years agoC. to be operating computers. D. by Thomse Edison 57. The following things can send out pulses of electricity except___.A. electric eels and human hearts.B. Electrical generators and animal muscle.C....
56. Electricity was invented ___. A. when man had no candles B. about 200 years ago C. to be operating computers. D. by Thomse Edison 57. The following things can send out pulses of electricity except___. A. electric eels and human hearts. B. Electrical...
【题目】Read the passage and choose the best answer(根据短文内容,选择最恰当的答案)Electricity was not "invented'; its characteristics (特征) and uses have heen known about and developed over hundreds of years. Storie(静止的)electricity produced by rubbing objects against fur was known to the ...
In 1732, Gray described the conduction of electricity, and in about 1745, the air capacitor (Leyden jar) that allowed electricity to be stored was invented by Von Kleist. In 1749, Benjamin Franklin introduced the concept of positive and negative electricity, and the conservation of charge. ...
原文定位: 回到原文that所在的句子,The electricity that was made by the tiles was enough for an LED light, but it did not make so much voltage. 其中that引导的定语从句修饰electricity,而electricity是由瓷砖产生的。 正确选项: B 13. 题干信息: How did Ann Makosinski work out the problem of ...
理解文章中一些关于电的专业术语和复杂的句子结构，如“The first battery was invented by the Italian physicist Alessandro Volta in 1799”等。能够运用所学知识，结合生活实际，对电的相关问题进行思考和讨论。四、学习过程 1、导入（5分钟）同学们，咱们现在生活在一个充满电的时代，想想看，你们早上一睁眼，是...
etthe Read the passage and choose the best answer(根据短文内容,选择最恰当的答案):(6分)Electricity was not 'invented'; its charucterlstles(特征) and uses have been known about and developed over hundreds of years. Statte(静止的)electricity produced by rubbing objects against fur was known to...