提出质能公式的科学家

一道函数的数学题 PS:若函数f(x)的定义域为[0,1],求g(x)=f(x+m)+f(x-m)(m>0)的定义域. 初中高难度数学题（PS：写出完整过程）在△ABC中,∠B=2∠C,AC=4倍根号五,AB=5,求BC的长. 英语翻译1 你等公交车等了多久啊?2 你等我已经很久了吗?3 我从早上 一直等你 到中午 / 下午4 我从早上9点,一直到下午4点 都在会议室等你5 车牌号为 069 的轿车,是谁的车?6 请问哪位顾客的轿 “你能看见多少公共汽车”.翻译句子 英语翻译1 他坐在 沙发上 / 椅子上 不一会就睡着了.2 他坐在公交车上睡着了,结果坐过站了.3 他 躺在床上 / 趴在桌子上 ,睡了 1个小时.4 坐在我旁边的女孩睡着了,头靠在了 【我的肩膀上】./ British people usually shake hands the first time meet.A. they B. you C. we D. I 英语翻译可以说I go to work and back home by bus we usually shake hands with people when we meet them ____ the first time .A.at B.for C.on D.in 在中国第一次见面时应握手people are ----- to shake hands when they meet for the first timeare后填什么回答越早奖励越多!十打底 Usually people in Japan and korea ___ bow when they meet for the first time,A,are supposed to B,are supposed C,supposed D,supposed to选什么,为什么,什么意思 fifteen minutes late than Suyang什么意思 Minutes怎么读 The train was fifteen minutes late ,so I___have run all the way from my office to the station.A shouldn't B needn't C mustn't D couldn't 怎样写观察日记? When people meet each other for the first time in Britian they say how do you do and shake hands.的翻译 In both America and England people shake hands when they meet each other for the first time.准确翻 When people in Brazil meet for the first time,they usually _________ each otherA.shake hands with B.bow to C.kiss D.nod their heads to 血腥王朝的英文翻译是什么 法国发生七月王朝之后 英语翻译 却克里王朝（曼谷） 英文翻译 I have fifteen bananas do you have?下一句用英文回答 “你可以成为我们摇滚乐队的一员”用英语说You can _______ ________ our rock band I have a balloon怎么读 I have fifteen story-books.对fifteen提问 “朝代”英语怎么写? "王朝"的英语单词是什么?麻烦知道的就说一下, I love the people,she doesn\'t love She is afraid to make a s__ in front of the people she doesn't know. 英语翻译Iran is observing the thirtieth anniversary of the country's Islamic revolution with a ten-day celebration that began last Saturday.The nineteen seventy-nine revolution forced Shah Mohammed Reza Pahlavi out of power and made Ayatollah Kho voa慢速英语怎么样.英语一直不过关,最近听朋友介绍去听voa慢速英语, fifteen发音标准音标是怎么发音的 所有音标