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为什么两个矩阵相似的必要条件是:∑aii=∑bii ACCA F2某细节问题An organisation operates a piecework system of remuneration,but also.guarantees its employees 75% of a time-basedn rate of pay which is based on $19 per hour for an eight hour working day Three minutes is the standard time allow 新概念英语第一册复习重点要从90课以后的就行了!~ 重点句型!~ 麻烦!了!~ 怎么才能成为一位优秀的人 新概念英语总复习 17.I have ___________(buy) this refrigerator on installments.18.She made _________(many) mistakes than Sandy did in the exam.19.Your work is much _______(good) than it was last week.五． 用much,many,few 和little 填空1.T 如何成为一个优秀的人” 怎么样复习新概念英语一册 为什么我们要成为一个优秀的人 速The hospital nearby has just got a,you'd call it,er...a scanner.A.that B.which C.what D.how 为什么选D?这不是定语从句吗?The hospital nearby has just got a,_____you'd call it,er...a scanner A为n阶矩阵,A的最小多项式为λ∧(n-1),为什么得到A的不变因子为1,1,……,λ,λ∧(n-1)? 如何证明n阶矩阵的特征多项式等于其（特征矩阵）不变因子的乘积北大《高等代数》第8章、第4节,P341上说：n阶矩阵的特征矩阵的秩一定是n,因此n阶矩阵的不变因子总是有n个,并且,他们的乘 ACCA F2 菜鸟提问A manufacturing company uses 28000 components at an even rate during the year.Each order placed with the supplier of the components is for 1500 components which is the economic order quantity.The company holds a buffer inventory o 速进,初中英语完形填空~A few B a few C many D most 已知抛物线y=ax+bx+c交与X轴正负半轴A B两点 与Y轴交负半轴与C若OA=4 OB=1 角ACB=90° 求解析式 速求 ACCA F2看书中遇到以下问题,百思不得其解,谁知道呢?万分感激!1.第3章 cost behaviour 3.4 example 里说As the fixed costs for 14500 square meters will include the step up of $5000.但是题目中说超过14000 square meters 的ste 一个边长为12厘米的正方形的周长比一个长为18厘米的长方形周长少14厘米,那么这个长方形的宽是多少厘米?列方程和数量关系 古代的益州,荆州大致在现在的什么位置拜托了各位 谈谈对“开卷有益”的看法从两个方面来回答 对开卷有益的看法我也要多读书,别起开卷有益的由来是宋太祖说过:”只要是读书~总会有好处的".自此,开卷有益便成为一个成语.开卷有益的由来是宋太祖说过:”只要是读书~总会有好处的". 十九世纪三十年法国文学流派是什么?及该流派的形成原因 开卷有益 看法 法国小说家普鲁斯特的作品《 》宣告“意识流小说”的文学流派已经形成法国小说家普鲁斯特的作品《 》宣告“意识流小说”的文学流派已经形成 到了初三总复习阶段、历史、物理、化学应该怎样背、有效率高的作用呢 初三应怎样复习 为什么人们常说开卷有益? 为什么说开卷有益 The boy was too scared to say anything.(改为同义句)The boy was____scared _______he could do nothing.一空一词为什么？ 五四时期问题小说 1.I want to have a cup of water.(同义句) I __ __ __ have a cup of water.2.中译英：同学们都很喜欢他.他喜欢帮助别人.3.Look!Our Chinese teacher is busy __ at his desk.A wor B with working C to work Dworking4.许多信息：（many/ 章回小说是五四时期形成的吗 初三如何复习呢?我妈妈说其实卷子上的题都差不多,如果做完一套卷子题型就差不多掌握全了,