轿顶作业注意事项

若/a-2/十/b-3/十/c-1/=0,求a十2b十3c的值. 已知y=/x-1/十/X/十/x十1/+/x十2/十/X十3/,当x为何值时,y取值最小,y的最小值是多少? 如果|x-1|十|y十2|十|z-3|=0,则(x十1)(y-2)(z十3|的值是多少?(不要过如果|x-1|十|y十2|十|z-3|=0,则(x十1)(y-2)(z十3|的值是多少?只需得数) 420*420*12 的预埋铁件应该怎么算? 英语翻译 ______ the sports meeting might be put off.Yes,it all depends on the weather.______ the sports meeting might be put off.Yes,it all depends on the weather.A.I’ ve been told B.I’ve told C.I’m told D.I told选什么 这里might是什么用法我 6._____ the sports meeting might be put off.-Yes,it all depends on the weather.A.I’ve been told B.I’ve told C.I’m told D.I told8.We don’t allow ______ in this room.A.smoking B.to smoke C.people smoking D.people to smoking第8题不是应该 一堆煤,用去三分之一吨,还剩下这堆煤的三分之一,这堆煤有多少吨,用去了这堆煤的几分之几一个有单位一个没单位 一堆煤,用去总数的40％后,又运进24吨,这时的煤是原来的三分之一,这堆煤原有多少吨?最好用方程解答!一堆煤，用去总数的40％后，又运进24吨，这时的煤是原来的三分之二，这堆煤原有多少 National Basketball Association 总的意思和缩写是什么? National Basketball Association是什么 I saw a boy ( )under the tree just now A :to stand B:standing C:stood D:was standing 选哪个? 根据情景完成下面的对话七年级（2）班举行家长会,你作为会议的接待员,在教室的门口接待来宾,当教英语的王老师来了,你高兴地说---------------------------------班上成绩交叉的李阳的家长来了, 根据下面情景,完成对话A:Good afternoon Sit down ,please .what's wrong with you B:Good afternoon ,Doctor .I'm not feeling well .Meybe I have a cold .A:____________________________________________________?B:Yes ,I have .It's a bit higher .A:Op Ms Smart put the pen on the desk.对Ms Smart提问 根据情景,完成下列对话 根据情景,完成对话A：Excuse me,Mr Green ,I can't the twins.B:Oh ,we must find ( ).What () they wearing?A:Well,Lucy () wearing blue trousers and a blouse.B:() sweater?A:No,she () wearing a sweater.She's wearing a white blouse.B:What () Lily?Is 根据 情景完成对话jask:________________________________?lucy:Yes,it is.And it is getting warmer and warmer nowjask:Are you free on saturday morning we are going picnicking.________________________________?lucy：Yes,______.But Iam sorry ______ 一堆煤有2吨,如果运走三分之一吨,还余下()吨 I was always so lonely standing there这里的stand为什么是ing?我觉得是to stand,be adj to do啊比如像i am happy to know.. 请教一个句子的语法,There is a parrot standing on a book. 为什么stand要加ing形式还有一个的句子,“Find five girls wearing dresses." 为什么动词都要变成动名词呢? Jack sat there without standing up .stand 的后面为什么要加ing . I was always so lonely standing there这里的stand为什么是ing?能不能是to stand national people's congress是什么意思 national congress是什么意思 如图,AE⊥AB,且AE=AB,BC⊥CD,且BC=CD,请按照图中所注数据,计算图中实线所围成的图形的面积是? AE垂直AB且AE=AB,BC垂直CD,且BC=CD,请按照图中所标注的数据,计算图中实线所围成的图形的面积S是图我不发了,EF=6,BC=3,DH=4 AE垂直于AB且AE=AB,BC垂直于CD且BC=CD,请按图中所标注的数据,计算图中所围成的图形的面积 the second of two things or people already mentioned什么意思? 中国有几位数学家中国有几位科学家 ShenZhouV1 was the___manned spacecraft of the People's Republic of China.A.two Bsecond's C.second 结合数学家的故事,写作为数学家应该具备哪些品质····帮我想想吧··········