百度试题 结果1 题目is well known, light, like heat, is a form of energy. A. It B. What C. Just as D. As 相关知识点: 试题来源: 解析 B 反馈 收藏
A. Sound energy B. Light energy C. Heat energy D. Electrical E. nergy 相关知识点: 试题来源: 解析 A。当铃响的时候,产生的是声音,声音是一种能量形式,即声能。B 选项光能是由光产生的能量;C 选项热能是由温度差产生的能量;D 选项电能是由电荷流动产生的能量。反馈...
根据文章一句"Light is a kind of energy you can see.(光是一种你能看到的力量。)"可知,光能被看到,而非被感知到。所以本题错误。2.【答案】T【解析】本题题干意为光直线移动。根据文章第四句"Light moves in a straight line.(光直线移动。)"可知,本题正确。3.【答案】T【解析】本题题干意为光...
A. Light Emitting Diode B. Light Emitting Device C. Light Energy Diode D. Light E. nergy Device 相关知识点: 试题来源: 解析 A。“LED”是“Light Emitting Diode”的缩写,意思是发光二极管。选项 B“Light Emitting Device”是发光设备;选项 C“Light Energy Diode”是光能二极管;选项 D“Light Energy...
What Is Light? 光是什么? Light is a kind of energy you can see. You can seelight from the sun. You can see light from a candle or from a light bulb. Light moves in a straight line. It cannot move around things that get in its way. When something gets in the way of light, it...
“LED is energy-efficient.” What does “LED” stand for? A. Light Emitting Diode B. Light Emitting Device C. Lighting Emitting Diode D. Lighting E. mitting Device 相关知识点: 试题来源: 解析 A。“LED”代表“Light Emitting Diode”,发光二极管。选项 B、C、D 的说法错误。
C.caloriesofenergy D.physicalexercise ( )8.Manypeoplecan?thelpputtingonweightaftertheholidaysbecausethey . A.can?tcontrolthemselves B.gototoomanyfeasts C.enjoydeliciousfoods D.can?thelpturningawayfromthefoods 二、完形填空 阅读下面短文,从每题所给的 A、B、C、D四个选项中选出可以填入空白处的最佳选...
Light energy travels in the form of a wave as it travels. However, no matter is, essential to carry the light energy to travel. This is why the light energy can travel through space where there is no air, whereas it is not the same with sound waves, as they have to travel through ...
What energy form is associated with the vibration of particles? A. 流根图自影指为论任果府便色把引流根图自影指为论任果府便色把引Sound energy流根图自影指为论任果府便色把引流根图自影指为论任果府便色把引 B. 过着论作社传位省分县该低研要交过着论作社传位省分县该低研要交Light ...
The sun, _undoubtedly_, is the source of light and heat. What other sources of energy are there? A. undoubtedly B. in addition C. by accident D. at present 相关知识点: 试题来源: 解析 A。“undoubtedly”插入语表示毫无疑问,太阳毫无疑问是光和热的来源。“in addition”此外;“by accident”...