When__was__the__steam__engine___?A.inventB.inventedC.discoverD.discovered 相关知识点: 试题来源: 解析 解析:discover指“发现或找到”某种自然界本来已存在、但以前未被人类发现或认识的事物,invent指发明创造出自然界本来不存在的东西。答案:B反馈...
When the steam engine was invented in the 18th century, it began one of the greatest revolutions in our world. The invention of the petrol engine at the end of the 19th century led to another enormous change in our lives. And the computer is almost certainly going to be no less ...
( )3.When were the cars invented A.In 1903. B.In 1885. C.In 2003.( )4.How does Tina go to school today A.By bike. B.By bus. C.On foot.( )5.What will the girl do this Sunday A.Do some housework.B.Watch a movie.C.Surf the Internet.Ⅱ.长对话理解(共5小题;每小题1分,...
When James Watt built his big steam-engines for industry, he invented a feedback device, a system which now plays a vital part in automation.Feedback【B1】that a machine can control its own【B2】. Watt"s invention was the "governor",【B3】task was to keep the engine speed【B4】, ...
When was the first race car invented? When were hybrid cars first invented? When was the jumbo jet invented? When was the first jet airplane invented? When was the lightbulb invented? When was the first seatbelt invented? When was the synthesizer invented?
When was the solar panel invented? What is the photovoltaic effect? Why are solar panels used in outer space? Editorial Contributors George Duval George Duval is a writer and expert in sustainability and environmental studies. After graduating with a B.A. in Sustainability from Florida International...
When bumper cars collide, thedrivers feel a change in their motion and become aware of their inertia. Though the cars themselves may stop or change direction, the drivers continue in the direction they were moving before the collision. ... The masses of the drivers also affect the collisions...
而他,已成了目前最重要的交通方式之一 It is invented in 1825, is Sun Sun invents, the grandson grandson passes through experiments many times, invents using the steam engine principle, after the success, others hear the sound, looked he can run, thought is the monster, all paohui the family...
Tonka Trucks were invented by three people in Minnesota who originally wanted to make garden tools but started making toy trucks after receiving a toy steam shovel. The dump truck was released in 1965 and became an instant bestseller, where it remained for the next 35 years. 1966: Troll Dolls...
When was the first car invented in Britain? When were hybrid cars first invented? When was the petrol engine invented? When was the rocket engine invented? When were motorcycles invented? When was the solar powered car invented? When was the internal combustion engine invented? When was the au...