标准气态方程

当x＞0时,函数y＝（e∧x）÷x的最小值是多少 Help!Help!Help!无论是在风尘弥漫的路旁,还是在荒凉贫瘠的山冈,甚至在窄小阴湿的石缝里,你都能看见它的身影,它是春的使者,也是新的开始.春寒料峭,它便无声地从大地母亲的怀抱中探出头来, （1+2/3）×（1- 2/3）×（1+2/5）×（1- 2/5）×...×（1+2/99）×（1- 2/99）=? f(x)=(1-a)lnx+a/x+x 求f(x)在[1,e]上的最小值 已知x∈R,求函数f(x)=(e^x-a)^2+(e^(-x)-a)^2的最小值(0 IN NO TIME 是否倒装? 某校为适应电化教学的需要新建阶梯教室.教室的第一排有a个座位,后面每一排都比前一排多一个位置.若第n排有m个座位,教室共有m个座位,教室共有p个座位,则a、n和m之间的关系为 ,a、n和m之间 f(x)=ax-ln(-x),x属于[-e,0）f（x）的最小值为3,求a主要是定义域 The bank is （ ） 166 Yuxin Street.填介词 while walking in the street ,you have to be very careful toavoid__down by passing cars or trucks.a.to be knocked b.being knocked 答案为什么不是a?不应该是将来吗?虽然avoid+doing,可是前面还有while while 的主句不是要+done吗? while___(cross)the street,you must be careful be careful while you are crossing the street（同义句） be careful t he street还有两人连忙站起来仔细看那两幅画the two men quickly stood up and the two paintings The market is just across () the busy bank on Changxin Street.填介词 my mother went wo Beijing with robot by air.(同义句转换） my mother ____ ____ Beijing with robot. 看海峡两岸交流新变化有感（作文）要求如下：通过身边的人和事,以小见大,用真情实感反映两岸人民渴望和平统一的美好愿望 1000字以内 偶要600左右就够了 e^x+4/e^x-2的最小值 y=x*e^（-x）在x∈[2,4]上的最小值为 若x＞1,则x＋[4/（x-1）]的最小值 为 Kelly has no _________(free) to do what she likes. Sally and Kelly _are talking _ in the room.(对划线部分提问) __ __ Sally and Keally____in the room（ ）————good weather it is today !A.What B.How C.What a C.How a急i! --What was she doing?--Ifound her _____ in the room.A.sang B.singing C.sings D.to sing She was playing in the gym.What was John doing?Hewas eating lunch in the dining room. 若A={ x｜x2-px-q=0},B={ x｜x2-qx-p=0},且A∩B={1},求A∪B．求结果及过程 |x-1|+|x|+|y-1|+|y+1|最小值 【语法 句子理解】I took the young Irish setter for a little walk up the road and alongI took the young Irish setter for a little walk up the road and along a frozen creek...Irish up the road and along a frozen creek是做状语么?什么状 something i go ( )《shop》 with my sister. 介词填空：Walk _______along the road,you can see the cinema.请告知理由, I went to the city with my sister改否定形式拜托各位了 3Q 2008年海峡两岸交流交往的重大事件 海峡两岸08—09年发生的大事一定要全啊!多举几个我要做成PPT的,（标清年份） 某数的小数点向左移动两位后,所得的数比原数要小15.84,求原数是多少? 点蜡烛意味着什么?为什么要点蜡烛?