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三个火怎么读 三个火读什么 英语翻译Stocks can be divided into two categories:those for trading and those for investing.Within trading stocks,you make money by figuring out whether other traders will keep buying...By contrast,with investing stocks you aim to buy into a comp 小学一年级上学期班会课的基本课如何设计 怎样上好初中班会课 如何计算两个等维度矩阵的相似度 for want of a better It was,particularly for visitors who weren't used to having 'pets'—for want of a better word—in the house.They used to get bitten and even attacked.And the good doctor was so interested in animals that he couldn't resist the 等边、等腰三角形重心的【特殊】性质（急）!如题! 正三角形的重心有什么性质 等腰三角形的重心和等边三角形的重心怎么找?应该很简单... 等腰三角形、等边三角形的重心位置有什么特殊性吗? what is the mass number of an atom that has 28 neutrons?请在5月24号之前回答 如何计算山体面积 怎么写, 高中——点的轨迹高 4m和 8m的两根旗杆笔直地竖在水平地面上,且相距10 m ,则地面上观察两旗杆顶端仰角相等的点的轨迹为A.椭圆 B圆 C双曲线 D抛物线 （设两旗杆分别为AB,CD,顶端AC的连线交BD 怎么写啊 以知点P（a,b)是圆x2+y2-2x+4y-20=0上的点,则a2+b2=?以知圆的方程为x2+y2=9,求过点A(1,2)的圆的弦的中点P的轨迹. 磁卡放在钱包里然后和磁性物品放一块还会消磁吗?我的包有磁性扣件，有什么办法可以避免？ 磁扣钱包会让磁卡消磁吗?今天收到了在淘宝买的太阳花钱包,拿到手还满意,在与同事打开看的时候,一位同事说：是磁扣的钱包啊?!那你的磁卡不能往里面放,磁卡离磁扣太近容易消磁!磁铁都 如何是消磁的的卡恢复磁性?希望提供好方法. 我的上网卡消磁了,磁卡怎么加磁性? 小学的复习题目 明天就要交了某加工厂有甲、乙两班共94名工人，因工作需要临时从乙班调46人到甲班工作，这是乙班到甲班人数少12人，求原来甲班和乙班各有多少人？甲乙丙三人合作一批零件，完工时甲 1一辆汽车送甲地开往乙地需要12小时,另一辆汽车从乙地开往甲地需要15小时.如果两辆汽车同时从两地相对出发,经过几小时两车相遇?2一项工程,由甲队单独做需要9天完成,甲乙两队合作只要4 怎么看磁卡有没有磁性 益民超市五月份售出的蔬菜比水果多9/2吨,售出水果的重量是蔬菜的3/4.超市五月份售出蔬菜多少吨?（方程解） some states use income tax in additition to sales tax to raise their revenues请问翻译、句型和词组 some states use income tax and sales tax to raise their revenues in addition to tax cuts ,controls on revenues were taken away.那位大侠帮我翻译下这个句子, in addition to tax cuts ,controls on revenues were taken away..介词后面cut只能加ing,为什么加s it was based more on German than the English we speak at present是什么意思? it was based more on german than the english 为什么不能based on more german than