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(GMT-07:00)山地时间(美国和加拿大)是什么意思 美国的山上面有五个美国总统的雕像,叫什么山?五位总统是谁? 美国的主要山脉有哪些还有河流、、 美国最大的山脉是什么 flavor free-Sugar 遥控飞机遥控器坏了遥控器要贴着飞机的天线才有反映大概距离只有5CM以内有效是什么毛病呢,不知道是遥控器坏了还是飞机内主板坏了.平率是49.860Mhz!要如何修复呢?遥控器和飞机接收器都看 遥控飞机的遥控器怎么做啊?遥控飞机的制作技术1.机身上的遥控装置怎么做?2.遥控器上的遥控装置怎么做? 遥控飞机遥控器上的ABC是什么意思.原先的飞机坏了,用以前的遥控器可以控制吗 The people in this city have planted ________ trees along both sides of the streets.A. much B. a large amount of C. a lot of D. a great deal of 英语翻译No two people are just the same.Sometimes friends don't get along well.That doesn't mean that they no longer like each other.Most of the time,they will make up and go on being friends.Sometimes friends move away.Then we feel very sad.We m How to get along with chinese people?answer me in english,please.因为我们要写作文,所以希望找点大家的意见 In order to be a success in the American business world,you must "get along"with people.这句话是一片完型填空的第一句话, 运筹学线性规划化标准型目标函数：min z=x1-x2-x3+2x4约束条件：10x1+x2-x3-4x4=77x1+6x2-2x3-5x4>=104x1-8x2+6x3+x4 运筹学 线性规划问题转化为标准型在约束条件中,2≤X2≤6,应该如何化标准? 运筹学 将下列线性规划问题化为标准型.Minz=-3x1+4x2-2x3+5x4 4x1-x2+2x3-x4=-2 x1+x2-x3+2x4=2 x1*x2>=0 x3 we went there with my parents.的上一句问句 i went there for three days with my parents last month 为什么是用went 而不用have been、 she lived in China for more than than ten years but now she has returned to homeland.一样的,为什么用lived ,而不用had lived.我觉得有for都 The Old Town of Lijiang （紧急翻译 ,只有一小时时间等待）The Old Town of Lijiang The Old Town of Lijiang is also known as Dayan Town in Lijiangba. It is an intact ancient city inhabited mostly by Naxi ethnic people and covers an Do you still remember the Old Town of Lijiang?-Is this the place _____ we visited last year?A.whereB.whichC.in whichD.the one 1Lijiang is ( ) with tourists for its beautiful old buildings.A.popular B.famous 2--There usedto be lots of fish in the lake.--Yes,but there are very ( ) now.A.fewer B.few急,说明理由 The city of beijing is ____with tourists for its beautiful old buildings and parksA sprcial B famous C different Dpopular 为什么可以用D而不用B 这句话怎么翻译 the Old Town of LiJiang is () with touritists for its beautiful old building a.popularb.famous c.special d.different为什么呢 硝酸铵燃烧的火焰颜色? —Was it last summer ———— you luckily got an opportunity to spend your holiday in Hawaii 在一定温度时,硝酸铵溶液的质量分数为50%,取84克该种溶液,要使它达到饱和,应该向 一定温度时,一硝酸铵的溶质质量分数为50%,取84克这种溶液(1) 要使它饱和,应该向溶液中再加入固体硝酸铵多少克?(2)若原温度不变而不加入固体硝酸铵,需蒸发多少克水使该溶液饱和(该温度时, 现有下列元素:H、O、C、N、S、Cl、Na、Ca,按要求填写化学式 1、治疗胃酸过多的小苏打2、炉具清洁剂中的碱是3、用于洗涤剂的苏打4、既可以治疗胃酸过多又能补钙的物质5、导致“酸雨”产生 无烟房是什么意思 People who live in tall buildings have to take the e____ up and down every d People usually eat m()jumping up and down in the zoo. 房间里有许多很多烟,英文There () () () in the room. 1.Firemen usually use a ladder______people_____tall buildings.2.They made glass bottles or vases_______different sizes and shapes by blowing hot glass.3.Could you lend me some money?l have______with me.我9点10要啊