伊丽莎白二世的曾孙子

高一数学已知f(x)=a/a^-1(a^x-a^-x)(a>0,且a不等于1)1.判断f(x)的奇偶性和单调性2若当x属于(-1,1)时,f(1-m)+f(1-m^) 已知三角形ABC的面积是60平方厘米,三角形BOC的面积是25平方厘米,AE=EC,AB=3AD,阴影部分面积是多少 如图6,在三角形ABC中,DE平行于BC,若AE/EC=1/2,试求三角形DOE与三角形BOC的周长比与面积比. 如图5,在△ABC中,DE‖BC,若AE:EC=1:2,试求△DOE与△BOC的周长比和面积比 相似类型的题目：已知：DE∥BC,AE:EC=1;3,求△ADE与三角形BOC面积的比值.有些不懂：DE∥BC,AE:EC=1;3,求△ADE与三角形BOC面积的比值. 如图,在△ABC中,DE∥BC,若AE／EC＝1／2,试求△ABC与△BOC的周长比与面积比 read the note and posters and answer the following questions是什么意思 ）Read the letter and answer the questions.Dear Wang Lin,It's a good idea to bring a small present when you go to a dinner party． Flowers are always nice,or you may bring a bottle of wine（酒）if you know that your friends drink it．You should Read the dialogue and answer the questions.Mom:Tomorrow is Saturday,what are you going to do?Tom:I will go to play football with John if it's a fine day tomorrow.Mom:That's a good idea,but what about your homework?Tom:I will finish it in the afternoo Read and answer the questions用中文是什么意思. Read the ___（follow）passage and answer the questions.填空 急帮下忙 Read the following passage and then answer the questions. 在线等,快!We can see walls everywhere in the world.But the Great Wall of China is the biggest of all.The Chinese call it "The Ten Thousand Li Great Wall".It is in fact more than 6,000 km l Read the ………(follow)passage and answer questions. 适当形式填空 read the passage and answer the questionsLove in a Paper BagIt was Molly's job to hand her father his brown paper lunch bag each morning before he headed off to work.One morning,in addition to his usual lunch bag,Molly handed him a second paper bag.T 32度42分52秒+57度17分8秒= （）度；32.6度乘4=（）度（）分；102度18分4秒除以7=（）度（）分（）秒；9度17分乘5=（）度（） 6.25°=几度几分几秒? 7°52′÷6=几度几分几秒 Read Text A and answer the following questions怎样翻译 Read and answer the questions.阅读理解Joe is a student of Clsaa Two,Grade Five.This morning he is late a---gain.He gets to school at 8：20.He says to his teacher,“Sorry,I am late.""Oh ,you are late again."says the teacher ."It' s not my fault( 39.33°=几度几秒几分65°25′12″化成度为多少度 a方减2ab因式分解 read the passage carefully and answer the questions 填空read the passage carefully and answer the questions b___ 1：缓慢氧化时会发光吗?2：木炭在氧气中燃烧时会有火焰吗?为什么? E,F在AB边上,且AE=AC,BF=BC,∠ECF=40°,求∠ACB的度数 read the following passage and write a tittie on the answer sheet theread the following passage and write a tittie on the answer sheet the U.S Deparunt of Labor statistcs indicates the there is an oversupply of college graduates and this oversupply i Read the essay ____ (quick)and then answer the following questions 爆炸都伴随着发光发热的现象吗? 爆炸都伴随着发光发热的现象吗?爆炸都伴随着发光发热的现象吗 分式化简(a+b)(a-b)+(4ab³-8a²b²)+4ab 求化简 0.2X-1/2y------------------------1/3X+1/4【三分之一X 加 四分之一 分之 0.2X 减 二分之一y】1/3X-1/5y------------------------2X+1/6【二X 加 六分之一y 分之 三分之一X 减 五分之一y】这两道求化简时间有限2.22号 先化简,再求值. 315打假投诉电话是多少