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函数 y=-kx与y=k/x(k不等于0)的图象的交点个数是几个?为什么、、、可是答案是没有交点、、 A healthy lifestyle is very important to us.是不是病句?如题. Having a healthy lifestyle is not difficultIs it not difficult —— —— (填空）a healthy lifestyle. 只有自己努力的人们才值得人们的帮助 翻译英语 要求有deserve 2010年是不是真的有世界末日啊?很害怕 2010年是不是真的是世界末日? 英语倒装句转化为陈述句Never will Zhou Yang forget his first assignment at the office of a popular English newspaper.否定词在句首的倒转句改为陈述句时,放在陈述句的哪个位置?Only if you ask many different questions w 英语中怎样将陈述句转化为倒装句? 把陈述句变为倒装句怎么把普通的句子变成句式较复杂的倒装句?请距离 作选择题的时候,同时出现陈述句与倒装句的选项,是不是选倒装的好一些? 四道英语单项选择?（请说明理由）1 It is useful to be able to predict the extent _ which price change will affect supply A from B with C to D for2 Don't trust him.He is _ dishonestA perfectly B utterly C purely D exactly3 He accomplished 1.mike went to the meeting in place of me 2.when he was five ,he could swim求解释 百万英镑亨利·亚当人物特点 人结束自己的生命,下一个世界会是什么样子的.?谁知道喔. - -. 知道的莫非你是鬼. Mount Song which lies in henan is a beautiful place 为什么用which 而不用where? 第六题怎么做 请说明理由 定义R上的函数f(x)的图像过原点,且满足f(x+2)=f(x+5),则f(2001)=? 英语语法题 定语从句20题目为图片,请解释答案+翻译句子,最好能写出解题的思考过程, Mei Lanfang first performance Beijing Opera when he was ten的意思是英语意思哈~ 4（x-3）²-（2x+1）²=（3x+1）（1-3x）+9x²RT.谢谢 Did you know the famous Beijing Opera actor Mei Lanfang?(保持句意基本不变)Did you _____ _____ the famous Beijing Opera actor Mei Lanfang?将下列短语译成英语四块肥皂 ________六只鹿 ________四篮橘子 ________两千吨煤 _____ (2x²+9x+9)/x²+xy+3x+3y 其中x=1/2,y=1/3 Mei Lanfang is a famous Peking opera p_____英语填词题,以p开头的单词 be adj to sb/do sth我在一道题上看见有to sb的形式,是对的吗?只记得老师说很重要,求解和列子 sb be adj to do sth.如i am happy to do this（或doing it） 这里面的不定式或分词作状语吗,做什么状语?懂的来有表语补足语这一说吗？ 1(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/3 ——(across) the road and turn right. But now———— (across)the road before the traffic is d—— corss the road at traffic lights请帮忙翻译一下 已知直线L的方程3x＋4y－12＝0,求满足条件的直线方程L1与L平行且过（－1,3） He began to write his own newspaper when he was fifteen years old.(同义句替换）____ ____ ____ ____15,he began to write his own newspaper. He was old music write started was when he was这道题错在哪里?要写出因为所以 Lili start ___(write)music when he was four years old.