在Lambert-Beer定律为什么A=-lgTRT

在Lambert-Beer定律为什么A=-lgTRT Lambert- Beer定律? 搜不到有关Lambert-Beer定律的计算题 为什么说beer定律只适用于单色光 Lambert-Beer定律,当合适波长的单色光通过某溶液并被吸收时,其吸光度A与液层厚度成反比B与溶液成反比C与摩尔吸光系数成正比D与透光率成反比E以上都不对.为什么选E不选C的. 比尔—朗伯定律（Beer–Lambert law）在实际生活中有什么应用?问题是what uses are there for Beer's Law?以及Are there common,every day example where Beer's Law can be observed or is used? we're going to have the roast duck and a piece of steak,two cups of soup and a beer.beer是不可数名词,为什么在句子中加了定冠词a?难道没人知道吗? ( )a glass of beer Tom bought a ( )of beer. 1:100万地图为什么要采用LAMBERT投影 生啤为什么叫draft beer 在焦耳定律里为什么电压不行 After that he asked for _____ A.another two glasses of beer B.two glasses of beer more C.more twoAfter that he asked for _____A.another two glasses of beerB.two glasses of beer moreC.more two glasses of beerD.two glasses of beer again为什么D不对 浓度g/l和mg/ml之间的换算根据Beer定律A=-logT=-log(I/I0)=log(I0/I)=εbc 其中ε的值怎么求呀 ε的值是一定的吗？1 a pitch of beer 什么意思 一榨啤酒 a pitch of beer? a pitch of beer 是一榨啤酒吗? A glass of cold beer is just.A glass of cold beer is just the ______ on a hot day.A.matterB.thingC.materialD.need请问选什么为什么?