对对子中大对什么
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-Where is my book?-Oh,here it is!I'm sorry I forgot ___it from youA.to borrow B.borrowing C.to lend D.lending
—I’m sorry I_______ my exercise book at home. —Don’t forget _______it here tomorrow, please.A. forgot; to take B. forgot; to bring C. left; to take D. left; to bring请问,这句话选C的理由,我怎么想象不出来当时的语
树叶在空中飘来飘去.(改为拟人句)
树叶在风中飘来飘去.(改为拟人句)
为什么在LED灯泡工作时,随着温度的升高 ,色温会越来越高,显色指数越来越高,照度反而会越来越低?
降低温度,用蓝色的滤色片么?蓝色不是色温高么?
LED 温度升高 色温如何变?温度升高,禁带不是变窄吗?那光子能量小,波长长,不是发出更偏红的光吗?那CCT就减小了?CCT 应该增大 但原理上我说不通。
arrive和reach的差别?这两个不是相同意思吗?差别在哪里?请简单说明.还有如果用英文说(请抵达了之后,联系我)请问(抵达后)应该要用过去式吗?还有顺便告诉我什么是及物动词,不及物动词
arrive和reach有什么区别这道题: Who was the first one ( )? A.to reach B.to arrive C.to get to D.to arrive at
She does her homework every day 改否定句 为什么 具体点
Li ming doesn`t know how to sell the words的中文意思
同意句转换 she doesn't know where she can go.=she doesn't know — — —.(三个空)
Let’s ___ (have) ice cream .让我们也有冰淇淋 空格是填have吗 可以的话告诉我为什么
Would you have an ice-cream?
have ice cream for( ?)括号里有三个答案1dessert 2meal 3drink 选哪一个?并说明理由
色温和显色指数有什么区别
、什么是照明灯具的发光效率、色温、显色指数?
She does not does her homework这句话是对是错
色温与显色指数有没有直接或间接地关系?
he is helping the girl _____(穿) a blue blouse and a white skirt
I don't know if she (will go ) to the movie.If she (goes),I'll tell you.为什么用will go,goes?
LED光源中的色坐标和色温的关系是什么样的?色温低是否意味着颜色偏红黄,色温高是否意味着颜色偏蓝?
什么是色品坐标和色温的区别?
我想购买LED灯有色度坐标xy,但厂家要色温,怎样算色温.
( )will go to shanghai tomorrow.A.you,he and I B.you,him and me C.I,you and he D.he,you and I
May be he will go to Shanghai tomorrow 错哪了
I don't know _________ he will come tomorrow._________ he comes,I'll tell you.选什么,为什么?
I don't know if Mr.Green_______(come) tomorrow,but I will let you know if he _____(come) tomorrow
LED色坐标怎么看色温的,比如色坐标是x=0.295,y=0.32.它的色温是多少呢?
想学:坐标、色温、显色指数含义,把“色度学基础”,我 q123718983 EMail:shicai_147@sina.com
这些国家的名字的英文
国家的名字.要中文也要英文的帮个忙.写出国家的名字.知道几个写几个.多一点好了.20个左右吧.= =.要中文的也要英文的.还有各个国家的首都的中英文也要写出来.