问题 问答题 简答题

会议室照明设计应把握哪些要点?

答案

参考答案:

会议室的照明应保证足够的垂直照度,以便于显现出所有参加者的面部细节。一般而言背窗者的面部垂直照度不低于300lx(勒克斯)。会议室的照明应证会议室桌面具备足够的水平照度,以保证与会者可以方便快速的阅读会议文件并做出相关记录,同时应注意避免桌面的反射眩光。

为了有效提高与会者的注意力,会议桌面区与周围区域的照度值应有较明显的差别,可选的比例为300/150lx(勒克斯)或500/200lx(勒克斯)。

为了适应放映幻灯片或电子演示的需要,应在会议室、洽谈室照明设计时考虑调光控制或设置集中控制系统,并设定几种不同照明方案。

小型会议室、洽谈室的照明宜选用较低色温的光源,适当营造出亲和、愉悦的环境气氛,缓解心理压力并易于相互沟通。此外,小型会议室、洽谈室如完全靠安装于顶部的直射型配光灯具构成的照明方案,可能对人的面部照明不完整,所以可采用适度的墙面照明,改善室内的垂直照度分布,并可以舒缓小会议的压迫感。设有专用主度台或某一侧有明显背景墙的大型会议厅,宜采用顶灯加台前安装辅助照明方式,并使台板上1.5m处平均垂直照度不小于300lx(勒克斯)。

单项选择题
阅读理解

New York State has passed the USA’s first state law banning motorists talking on hand-held cell phones. The ban will begin November 1st, although drivers caught using hand-held cell phones will be given only warnings during the first month. 

First-time violators(违法者)will face a $100 fine. A second time call for a $200 fine and every violation after that will cost$500. 

At least a dozen localities(地方)have established bans, starting in 1999; and 40 states have had bans proposed but not passed. At least 23 countries, including the Great Britain, Italy, Israel and Japan, ban drivers from using hand-held cell phones. 

There are about 115 million cell phones in use in the United States and more than 6 million in New York State. 

“To think that I’m not going to use cell phone when at the same time I can still use my laptop(膝上电脑), I still can read a paper, I can still change my trousers while driving 65 mph. I think there’s just something wrong,” an official said. 

Other critics noted that other things like eating, drinking coffee and applying make up while driving caused at least as much of a concern. They suggested that the ban include a broader range of things. 

小题1: How much fine will a hand-held cell phone user receive if he has been caught using it four times while driving after November?

A.$500.

B.$1000.

C.$1200.

D.$1300.小题2:. We can see from this passage that ____. 

A.the ban has been put into effect in most states in the U. S.

B.many of the developed countries forbid drivers using hand-held cell phones

C.over fifty localities or states ban drivers from using hand-held cell phones

D.more people in the U. S. are against the ban than for it小题3:The official mentioned in this passage ____. 

A.does not agree with this ban

B.doesn’t believe using hand-held cell phones while driving will cause any danger

C.doesn’t understand why hand-held cell phones alone should be banned among many others

D.believes changing pants while driving will cause greater danger小题4:The writer intends to tell us in the last paragraph that ______. 

A.it is not fair to have this ban passed

B.the ban will never be passed in the whole country

C.more activities of the same kind should also be banned

D.the ban will meet with more criticism