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已知y=f(x)是R上的偶函数,当X>=o时,f(x)=x^2-2x,求f(x)的表达式 已知y=f(x)是R上的偶函数,当x>=0时,f(x)=x^2-2x 求f(x)的表达式 左偏旁火右边字是良～这个字读什么 找出意思相近的选项替换括号部分的短语Miss wand had taught in our school for (less than) two years before she left for Beijing.A.fewer than B.not so many as为什么不选A呢? 英语：找出能替换( )部分的选项1.There is a (famous) scientist from Australia.A.best B.favorite C.known D.good2.What's up?A.the wrong B.wrong C.trouble D.happen3.Let's go on working.A.stop B.start…again C.have D.finish4.What about his wo 替换句中的括号部分(Threr are three people in my family.)Lucy and Lily are my (girls ). I love them very much .(I like apples the best 最 ）Can you tell (how to get to the post office)?It's time (for) supper now. 给里、垂加偏旁并组词 六一活动作文!（以物换物活动）以括号里为主题写!500字48小时内!改一下24小时 谁知道08.5.12汶川地震的坐标?rt 这次汶川地震中主震的地点在哪里?我说的是准确的地名和数据,如：经度、纬度、哪个地区以北、哪个地区西部.等等形式,总之越详细越好! 先化简,再求值:2(x+1)(x-1)-x(2x-1),其中x =-2 (x+4分之1)-(2x-2分之1)= 万水千山惊鸿一瞥,浮光掠影雁过无声是什么意思?望有高人指点. 高数,间断点问题.分段函数f(x),[ e^(1/x) - 1] / [高数,间断点问题.分段函数f(x),[ e^(1/x) - 1] / [ e^(1/x) + 1] ,x≠0f(x)={1 ,x=0则x=0是函数f(x)什么类型的间断点? 若-x的a次方y的a+1次方与3x的5次y的b-1次方的和仍是一个单项式,求2a-b的值 lim sin4x/tan2x x→0 设F(x)起连续函数,且为偶函数,在对称区间[-a,a]是的积分 f(x)d设F(x)起连续函数,且为偶函数,在对称区间[-a,a]是的积分∫(上a下-a)f(x)dx,由定积分的几何意义和性质得∫(上a下-a)f(x)dx= 已知函数f(x)满足f(x+1)=-f(x),且f(x)是偶函数,当x属于【0,1】时,f(x)=x^2,若在区间【-1,3】内,函数g(x)=f(x)-kx-k有四个零点,则实数k的取值范围（）A.(0,+) B.(0,1/2] C.(0,1/4] D.[1/4,1/3] 完形填空（根据括号里的单词填空）（as ways young when they better help year health later after why）Love has on meaning if it isn't shared.Love has to be put into acion.——Mother TeresaIn the movie,The Bells of Saint Mary,Bing Cro 英语翻译Time spent in a bookshop can be enjoyable.If you go to a ___ shop,no assistant will come near to you and say,"Can I help you?''you ___ buy anything you don't want.You may try to find out ___ the book you want is.But if you fail,the assist Ⅷ. 完型填空(将选项的符号填入题号前面括号内)(1×10)Look ① the picture,please. We can see Green's ② in it. They are ③ . Mr. ④ Mrs. Green are here. Kate ⑤ there. ⑥ is Jim? Oh, ⑦ is behind the chair. What's that? It ⑧ 英语翻译3Q~ 已知：正方形ABCD中,∠MAN=45°,∠MAN绕点A顺时针旋转,它的两边分别交CB,DC（或它们的延长线）于点M,N．当∠MAN绕点A旋转到BM=DN时（如图14）,易证BM+DN=MN．（1）当∠MAN绕点A旋转到BM≠DN时,线段BM,N 雁过无痕比喻什么 雁过无痕出自哪里 长度单位换算1毫米=10丝米 而钳工师父常说的“几个丝”是：1毫米＝100个丝 为什么不说忽米呢? 叶落无声华语残 云卷云舒亦自忧是什么意思? 雁过无痕 叶落无声是什么意思?有什么寓意? 谢谢. 3a+b+2a+5b=（ + ）+（ + )= + 2a+b/3a+5b 求a/b 3a+b=4 2a-5b=610a-8b=a=b= 设f（x）是周期为2的偶函数,当x∈（2,3）.f（x）=x^2,求当x∈（-2,0）,f（X）的表达式