• Street Lighting: LEDs are used in streetlights due to their longevity and energy efficiency, reducing maintenance costs. • Automotive Lighting: Found in headlights, taillights, brake lights, interior lighting, and indicators in vehicles. • Architectural Lighting: Used for accent lighting, h...
A. C. They can fly in)60.What will happen to the streetlights if (如 ) a man comes near them? A. They will be on. B. They will turn red. C. They will play music. D. They will speak to him.control () the house in the future? 相关知识点: 试题来源: 解析 答案见上 ...
13.-All the street lights ___ because of the power cut (断电) last night.-Then what did you do? A. went on B. went out C. went down 相关知识点: 试题来源: 解析 13. B go on“继续”,go out“熄灭”,go down“下降”。 由句意可知,断电了灯就熄灭了。故选B。
(Just a parenthetical note here: You say, "all LED street-lights today are full-cutoff so there's no need to 'correct' for up-light with shields." You are mistaken. "Full cut off" means only that the lights don't cast light straight up. But without shields they still cast light ho...
Traffic traffic lights, electric bikes (电动车)… Swimming rivers, swimming pool… Internet ID number, code (密码), unhealthy websites… … … 要求:⑴短文必须包含提示中所有内容,并适当发挥; ⑵语句通顺,意思连贯,语法正确,书写规范; ⑶文中不得出现真实人名、校名或地名; ⑷词数: 80左右(开头和结...
HID lights are bright, powerful, and can cover larger grow areas. They work by sending an electric current through a gas-filled tube, which produces intense light—kind of like street lamps. But they do run hot and can rack up your energy bill. ...
yournameinlights. A.Itisn?tjustaquestionoftimeandsupport. B.AuthorMalcolm Gladwellthinksheknows. C.That?sequaltothreehoursadayfor10years. D.Ofcourse,manypeoplearguethatyoucancreate yourown“luck”. E.Thepopularviewisthatsomeofusareborntalentedandothersaren?t. F.TaketheexampleofChristopherLangan,who...
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At night, the traffic lights are not working. What should you do? A. Cross the street immediately B. Wait for someone to tell you C. Stop and look carefully D. Shout loudly 相关知识点: 试题来源: 解析 C。夜间交通灯故障时,应该停下仔细观察路况,A 选项立即过马路太危险,B 选项等待别人...