朱家尖南沙门票

lim n*sin(x/n)如题,n趋近于无穷大,这个极限咋么求.. 第一题(x+y)^-3分之（2a）^-1 第二题x^2(x-1)^-1-[1+（x^2-x)^-1] 第三题7^-1(x+y)(x-y)^-2 用指数幂表示 得天独厚的意思 x→∞ lim(5n/2)sin(2π/n) 已知梯形ABCD内接于圆O,CD与AB平行,圆O的半径为4,AB=6,CD=2,求梯形ABCD的面积.要过程,在线等,好再加分,速度! 2分之x-2y ,x ,-7分之3xy ,x分之2,x分之1+y+1,2a²bc,2又3分之1 ,π分之x+y 哪些是单项观察下列代数式2分之x-2y ,x ,-7分之3xy ,x分之2,x分之1+y+1,2a²bc,2又3分之1 ,π分之x+y哪些是单项式?多项式,整式? sat词汇分类各位大侠谁有 sat词汇 按词义分类的 得天独厚的意思是什么? lim(n→1)sin(1-x)/(x^3-1) 已知梯形ABCD内接于圆O,AB平行于CD,圆O的半径为5,AB=8,CD=6,求梯形ABCD的面积 求各式中的x（预初数学题目） 1.x:3又2分之1＝3又7分之1:4 2.7又2分之1：1求各式中的x（预初数学题目）1.x:3又2分之1＝3又7分之1:42.7又2分之1：1.8=x:13.x+30分之6.25＝8分之1 求sat 词汇分类（意群 ） I( ) like that kind of moviesA:too B:also C:to D:either第一句是I like thrillers 箱子里有白球和红球共30个,每次取出5个红球和3个白球,取几次后,剩下的红球是白球的二分之一原来红球有几个 3个红球和2个白球扔在一个盒子里,随便拿出一个球在放回去,再拿一个球是红球的概率是多少? 中国古代有多少个古国 中国古代西南古国名 有哪些?请附带现在是什么地方 古代中国是世界四大发明了古国.(修改病句) 中国是古国吗? 世界上四大古文明古国是哪四大? 《中国古国的今天》怎样写? 急,ssat的数学部分难吗小学程度够吗?我看官方那本preparing and applying的题蛮简单的,真正考的题会难很多吗?（希望真正考过,清楚的人才答）注意,是有两个s的,不是sat,这个问题已经问过两次了, SSAT数学the price of a cold roast beef lunch is $4.80 and the price of a hot roast beef lunch is $5.40.If both prices include 20 percent for tax and tip,what is the difference in price before tax and tip? of the 50 hotels in the hilltop hotels chain,5 have indoor swimming pools and 15 have outdoor swimming pools.What percent of all hilltop hotels have either an indoor or an outdoor swimming pool? 还是不太明白ssat数学if m is a positive integer,and if 3+16/m is an interger less than 19,which of the following must be true of A:m=19,B:m is even,C:m=16,D:m is a prime number E:m is a multiple of four 但我觉得C是正确的,只不过不 英语翻译In a situation like this the basic concern in realizing efficient regulation is to harmonize policies towards central government's goals.In practice,this was realized through SCs getting involved in regulatory routine.The fragmented regim 英语翻译In 1978 China entered an era called the `system reform and market opening.The traditional socialist regime began to undergo a series of reforms towards `socialism market economy.Hence Chinese reform has been to adopt market economy while sinθ与cosθ的平方 取得最大值时θ的大小为多少?sinθ 乘以 cosθ的平方 取得最大值时θ的大小 需要详细解题过程 THANK YOU ! 英语翻译内容如下:由于圣诞节快到了,货运公司很忙.所以你的货物可能会推迟2天收到.希望你能理解并请耐心等待.翻译成英语. 英语翻译South Korea and the United States have agreed to increase bilateral cooperation in developing shale gas,South Korea's commerce and energy minister said Monday,a move that will bring Seoul closer to using the new and cheap source of energy 英语翻译The move is part of the country's long-term biennial plan to stabilize the electricity supply.The plan has been announced since 2002 but was delayed last year until today due to the frequent power shortage emergency situations caused by t 判断正误：对联中上联的最后一个字是第三声或第四声,下联的最后一个字是第一声或第二声,