cosx/2cosx/4cosx/2n的极限

这是一件光荣的事情.改为双重否定句 我国制约和监督政府权力的原因是什么? 爱两个字的成语 为什么权力需要监督与制约 We should Ride Bicycle More OftenAlong with the level of income continuously improved,people use cars more than bicycles.But I think we should usually use bicycles.Riding bicycles won’t make pollution to the environment.Riding a bicycle is much qui 谁帮我把这段话改成英文.我很想忘记有关你的一切,可是我不愿意失去你的消息! 英语高手啊!帮我修改一下这段话~!Greenhouse effectTransmission of the confined space of sunshine with the outside world due to lack of heat exchange and the formation of the thermal insulation effect, short-wave radiation is the sun throu 什么成语含有爱情两个字? 短语go away啥意思 牛A与牛C之间徘徊 英语怎么写? 请翻译为英文：我一直徘徊在牛A和牛C之间 go away we go 什么意思求正确的翻译.不要什么电影 还有机器翻译就别说了 修改一段话(英文)In contrast, some people argue that with the development of globalization, the role of advertising is becoming more crucial in business, because of the World Wide Web opens up new communication possibilities for personalized me 求英语达人们再修改一段话：The people who always make me laugh is my grandpa.Because he has a great sense of humor.firstly,my grandpa has great experiences.Once he served in a army ,that was a hard time,but he get a lot of interesting sto 一道难解的几何题,我们老师此时还未解出.水管的外部需要包扎,包扎时用带子缠绕在管道外部.若要使带子全部包扎管道且不重叠（不考虑管道外部两端的情况）,需要计算带子的缠绕角度a（a 英语翻译今年,下起了大雪.屋顶上、草地上,到处都是白茫茫的一片.南方部分地区还有较为严重的雪灾 已知：AB、CE、DE、CD的长度AB平行CECD=DE,AE=CB求AE=?（要公式） 请英语大师帮我修改一段话I am always lack of a chance of speaking English practise,so I know my ability of speaking English can be improved up to a satisfying level because speaking is also based on gramma and words.I am always lack of a c 修改一段话(英文) 希望大哥大姐能仔细看看这段话.希望改动大点,但意思不变.Cash flow problems can be short-term and temporary,which means a business may need short-term finance to pay its bills and to keep its suppliers hap 如何严格遵守八项规定,加强对权力运行的制约和监督 如何加强对权力的监督和制约 “离开”的延续性动词是be away from 还是be away 为什么做人就要做一个徘徊在牛A和牛C之间的人? 如何进一步加强对权力的制约和监督 如何强化对权力的监督和制约? 英语小问题,把下面这句话改成一般疑问句怎么改?all faculty should be required to spend time working outside the academic world in professions relevant to the courses they teach 太阳爸爸 月亮妈妈 爱的描述 （急） 请英语高手帮我修改下这段话的错误~In summary,this paper is devoted to the study on the reflection of the cultural values in the Chinese and Western horror film,including the introduction of Cultural Values and cultural values reflect i 1.三棱锥的三个侧面两两互相垂直,且侧棱长为2倍根号3,则该三棱锥外接球的体积为（ ）A 48派 B 36 C 32 D 122.空间四边形ABCD,P,R分别是AB,CD的中点,PR＝3,AC＝4,BD＝2倍根号5,则AC与BD所成角的度数为?3 送元二使安西是从哪知道描写的是春天的景色的 如图 在直四棱柱ABCD-A1B1C1D1中 DC-DD1=2AD=2AB AD⊥DC AB//DC 1.求证：D1C⊥AC12.设E为DC上一点 确定E的位置 使得D1E//面A1BD 并说明理由