矩阵乘法可交换

what was he doing when the crime happened改为同义句 do you think money will disappear somedays in the future?that is:what do you think of the use of money?in your perspective,does money will vanish or not as the develop of our society?and please explain your idea.thank you!by the way,i am chinese,plea 英语适当形式填空. 英语适当形式填空解答!谁会谁会 英语正确形式填空!3个,1、Peter will ___ out the candles.He often ___ out the candles like this.(blow)2、___ the boy in bed ___ (like) volleyball?3、Now Tom can ___ the cake.Look!He's ___ the big cake.(cut) 英语 用适当形式填空求答案 按要求改写句子【英语】 1、Peter and Mary do their homework in the morning.（用this morning替换） Mary （ ）do her homework every morning.括号里填doesn't 还是 don't I forget to set my alarm clock ,and I ____(睡过头)this morning Sorry,Mum.I forget _____my room this morning He is a doctor who care for the ______（die） If I die,who would remember me express delivery是什么意思 express delivery letter是什么意思 请问Services:The Case of Postal Versus Express Delivery Services这篇文献的出处是那里呢,可否告知? express mailing services是什么意思 名词单复数问题新概念2册28课1.Jasper hopes that she will turn cars and their owners to stone.2.But none of them has been turned to stone yet!关于：stone2句用单数好理解,但是1句为什么也用单数呢?如果第一句是抽象 springerlink怎么下文章 求帮忙下一篇springerlink的文献Synthesis of Mg2Al-Cl layered double hydroxide nanosheets in a surfactant-free reverse microemulsion感激不尽 delivery address 与postal address的区别德国某公司的Delivery address:Mackenrodtstraße 14,36039 Fulda,GermanyPostal address:36035 Fulda,Germany为什么不一样呢 pater did his homework this morning (否定句） The birds flew very fast （一般疑问句）I went to the great wall last month（划线部分提问） ------------- A close mouth catches no flies Let me sing a song for you, close your eyes and give your heart to me中文意思 A dream 啥意思? chose-dream是啥意思? Working for my parents 作文一篇 My parents are always busy,so I____every sunday working around the house.A spend B get C take D pay 会计英语翻译They decide whether their investment is sound.这句话中sound应该怎么翻译,谢谢. 英语翻译They don't care what the topic is,whether they themselves are interested in it or how silly they appear to be. What they need is increasingly what they are not getting 怎么翻译这句话? the ice is too hard to walk across in the winter翻译 By your mouth you shall perish.是什么意思