中国枪榴弹

Have you a birthday card?回答 ---which book would you like to buy ---sorry,I am just （　　）these book here.A.looking throught B.looking forC.looking up D.looking after Sorry,I forgot____my Englishi book here.A to bringB to takeC to getD bringing麻烦告诉我为什么这样写, -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?