十代思域胎压监测

某车间有30人,生产甲乙丙3种零件,每人每小时能生产甲30个,乙25个,丙20个,现用零件甲3个,乙5个,丙4个装配成某种机件,如何安排劳动力,才能使每小时生产的零件刚好配套?用三元一次方程组解 一个车间有30名工人,计划要加工AB两种零件.这些工人按技术水平分为甲乙丙三类人员其中（接补充）甲类人员有6人,乙类人员有16人,丙类有8人.甲每天加工A50个,B80个.乙每天加工A30个,B60个.丙 【数学问题】某车间有工人30个,生产甲乙丙三种零件.每人每小时能生产零件甲30个,或零件乙25个,或零件丙20个.现在用零件甲3个,零件乙5个,零件丙4个装配成某种机件,如何安排劳动力,才可以 某车间有工人30人,生产甲、乙、丙三种零件,每人每小时能生产零件甲30个,或零件乙25个,或零件丙20个,现用零件甲3个,零件乙5个,零件丙4个装配成某种机件,如何安排劳动力,才能使每小时生产 Today,roller skating is easy and fun.But a long time ago,it wasn’t easy at all.Before 1750,the idea of skating didn’t exist.That changed because of a man named Joseph Merlin.Merlin’s work was making musical instruments.In his spare time he like 英语题请求帮忙1,—Where is dad? -—I don't konw .He ------to the park to take exercise.A might have gone Bshould go答案是A 我不知道B为啥不行,.也不知道是对过去的推测还是对现在的推测,用“应该是去锻 句型转换1、It takes me thirty minutes to read English every day(同意句转换）I ＿ thirty minutes ＿ ＿ English every day.2、He usually goes to work by subway.(同意句转换)He usually ＿ ＿ ＿ to work.3,I haven't been to Japan.He h 1,那些展览的书很欢迎.the books that[ ]are very popular.答案是are on show.但是我不理解,2,他们同意早点动身.they are [ ]to leave early.agreement.为什么可以这么用. Complete the following sentences with the proper forms of the words given in brackets.1.The young man should have had a ______ future,but he made some serious mistakes in his thirties and was arrested.(promise) 2.The little boy was often nervous in t 甲师傅生产一批零件用了六小时乙师傅五小时,他们的工作效率比是几比几 设有两个命题：p:不等式(1/3)的x次方＋4＞m＞2x－x的平方对x属于R恒成立；q:f(x)=-(7-2m)的x次方是R上的减函数；如果p且q为真命题,求m的取值范围 设命题p：函数y=a的x次方在r上单调递增,命题q：不等式a乘以x的平方—ax+1大于0对任意的x属于r恒成立,若p且q为假,p或q为真,求a的取值范围 加工一批零件,由一个人独做,甲要12小时,乙要15小时,如果两个人合做,几小时做完 加工一批零件由一个人单独做甲要12小时乙要10小时现在甲先做3小时后乙再来参加一同做还需多少小时完成 解释几个英语单项选择,thanks1.oh,there isn't enough ( )for us in the life.A.place B.room 答案上是B,A为什么不对?2.I think ( )lesson is the most difficult in the book.A.fifth B.the fifth 答案上是B,为什么不是A?3．Lucy said sh 在实数范围内分解因式：x的4次方乘y的平方减9y的平方 张叔叔装配一台机器所用的时间比过去缩短了40%,他的工作效率提高了百分之几?设 过去装一台机器的时间是单位1 1X（1-40%）=60% 60%÷1=66.7%为什么要这样做啊为什么是40%除以60%啊!到底怎么回事 张叔叔装配一台机器所用的时间比过去缩短了40%.他的工作效率提高了百分之几? 张叔叔完成一项工作所用的时间比过去缩短了40%,他的工作效率比过去提高了百分之几? 【初三、新高一】英语单项选择01-Math is difficult for me .How I wish to improve it!-Don't lose you confidence.I believe you will ___it if you keep trying.A.take B.work C.pick D.maketake it/work it/pick it/make Ken got a nasty eat___one f 分解因式 4xy二次方－4x二次方y－y三次方＝ 英语单项选择,并求讲解A little boy wrote____"u"and____"n" on the wallA.an,a B.an,an C.a,a D.a,anMrs.Smith is___friend of ____.A.the,mine B.a,me C.the,my D.a,mineHe ordered ____book some time ago and now___book has arrived.A.the,a B.a,a C.the 英语单项选择,The Internet gives students the chance to have the materials they need _ to them quickly and cheaplyA to deliver B deliver C delivering D delivered 1：张师傅15分钟可以做30个零件,每分钟可以做( )个零件,做一个零件需要（ ）分钟.2：把一根粗细均匀的木料锯成三段用了9.6分钟,照这样计算,把这根木料锯成5段,要用( )分钟. 单项选择Who' that at the door?-____is maryA.It B.He C.her D.This求正解 原因 单项选择,英语, 初一下英语单项选择求帮忙 1.Good to see you again.It's almost three years ____ we met last times.【这个我觉得选D,】A until B before C while D since2.---I left my keys in the room yesterday.I had to get in ___ the window.---It's dangerous to do that.A in B through C ov 几道初一的英语选择1.Let me ___ the book in the bag.A:put B:puts C:to put2.I went you to _____ me with me Chinese.A:speak B:talk C:help3.Bob likes _____ TV and ______ football.A:watch play B:watch playing C:watching playing4.-What is your ___ 已知多项式x的二次方-4x+m因式分解的结果为(x+a)(x-b),求2a-m的值 王师傅做一个零件的时间由原来的12分钟减少到8分钟,原来做200个零件的时间,现在可以做多少个? 英汉互译这些东西当中,你拥有多少?＿ ＿ of these things ＿ you ＿ 发卡是给女孩子们的.＿ ＿ are ＿ girls.对画线部分提问.I usually get up at 7:00 in the morning.(画线部分是 at 7:00)＿ ＿ ＿ you usuallu get up