举一个正交矩阵例子

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跨文化交际的重要性急求,与紫砂有关 model什么意思 Model 大 someone是什么意思? missing someone什么意思 学了赶海和海底世界,你想对大海说些什么,要求150个字 五年级英语食物对话 you cannot keep this job more than 3 month还是you cannot keep this job for more than 3 month?为什么? 我想知道这些题的标准答案1,装饰艺术起源于哪个国家?2,外文字体主要以英文为主,分为哪三种?3,设计品的社会评价方式分为哪三个层次?4,艺术设计的本质在于那些方面 5,属于斯堪地纳维亚的 短文改错,我要标准答案.One day my sister and I drive to the supermarket .On the 1.___ way there ,we saw that our 15-years-old brother’s bike was 2.___left unlocked outside a bookstore.It wasn’t tied anything.3.___ We were very angry beca 我要1、2、3的标准答案 网络语 赶海啥意思 我要以下10道题目的标准答案Passage 1Maybe you are such a person who will spend longer time in adjusting yourself in a new environment.The Australian universities arrange a series of activities for their international freshmen.There’ll be 古文《为学》中:(为)之,则难者亦易矣. 要标准答案. 求标准答案,还有过程 给一个标准答案 求这道题的标准答案 查四级成绩时准考证不在,且不知道准考证号怎么办 呵呵, ----I return the dictionary within three days.No.you----,you----keep it for five daysA.May,needn't,can B.Must,don't have to,can 你拥我挤的意思 你拥我挤的意思是什么? who are walking over the bridge?英汉互译 The table takes up too much room,中文意思?词尾为什么用room,而不用rooms或place 1.This table takes up too much room.2.The oceans take up the greater part of the earth’s surface.请翻译 I must get rid of this large table; it ____ too much roomA.takes to B.takes on C.takes off D.takes up can i use your dictionary?A go ahead,help yourself,please.B yes,you could.C with pleasure.A中的help yourself在这里是什么意思? could I use your dictionary 怎么做肯定回答,为什么? 牵了手就不要随便放开的英语怎么说 EXtra是什么意思? 刹克龙是什么设备?工作原理是什么?