y=-x4+x2+2

作文 差一点就成功了写与成功失之交臂的故事差一点点就成功了 比如马虎啊 不小心啊 原创楼下的都是盗版如果是原创多加50 在生活中要如何为父母分忧 我为父母分忧解难的一件事 作文 快我要用到了 too many student waste time on tv too many students waste time on tv为什么第一个中 学生不用复数可数名词不是用复数形式吗 Are you using whatsapp 翻译中文 Yeah .You are right .中文 yeah.Dad,you.are 我为朋友分忧 cape什么意思 为家人分忧 翻译 cape jaswine cape perpetua什么意思 blanket 马六甲王朝衰落的因素what problem melaka 我要的是马六甲王朝衰落的因素?因素啊?不是哪些马六甲王朝步向衰落的因素： 马六甲王朝在全盛时期,是个 马六甲王朝步向衰弱的原因 马六甲王朝的历史——（全部）我要全部马六甲的历史, 写出词语 扰乱；使不安宁（ ） 逐渐侵害而变写出词语 扰乱；使不安宁（ ） 逐渐侵害而变坏. 使不安宁；扰乱.写出相应的词语. The press conference ,originally due to be held last week,was finally_____because of the sudden war in the country.A.set off B.broken off C.worn offD.called off 奥巴马 held a press conference and ____the conversation with Susilo,at a state dinner____hewas served his favorite childhood dishes.A carried on ,when B carried through ,where C went on,when D carried on ,where 团员对未来五年的计划书怎么写? press conference是什么意思? press conference什么意思 He has left 2 days before.翻译是：2天之前他已经走了.还是：他已经走了两天了.为什么? 改同义句 I'll never go to bed until Iwork out the problem1.I'll never go to bed until Iwork out the problemI’ll go to bed _______ I work out the problem.2.I hope you have a good time at the partyI hope you ______ ________ at the party He was too tired to go any______.A.farB.furtherC.fartherD.farthest Alice is too tired to go on reading.(保持原句意思)=Alice is so tired that she ____ go on reading.五个字母 He was too tired to go on walking 同义句 设集合A=(1.2.3),B=(4.5.6),定义映射f:A→B,使对任意X属于A 都有X方+f(x)+x方f(x)是奇数,则这样的映射f的%设集合A=(1.2.3),B=(4.5.6),定义映射f:A→B,使对任意X属于A 都有X方+f（x）+x方f（x）是奇数,则这样 设集合A和集合B都是实数集R,映射f:A→B把集合A中的元素x映射到集合B中的元素lg(x2+6),则在映射f下象1的原象所组成的集合是 设f:x_x2是集合A集合B的映射,如果B={1,2}.则AnB=?