避雷器试验标准

F(x)=a-【1/（2^x-1）】 g(x)=1/【f(x)-a】1：若g(2x)- ag(x)=0 求a的取值范围2：若a=2 是否存在（m,n）m＜n使得F(x)的值域和定义域都为(m,n)求出m,n的值 谁知道关于公文写作联合行文的有关规定,比如说署名、抬头怎么写? 公文写作 同时给两个单位发函 抬头怎么写 at the top of与on top of 与in the top of的区别,请详细说明, in the top of 和on the top of的区别 everything happens for a reason for no reason 中文翻译 It's all there for a reason中文意思 1．公文写作在行政能力中的地位及其意义是什么?2．公文有秘密等级,请结合你的本职工作谈谈你对机关公文保密的认识3．请结合“通报”这一文种说明公文写作与其他写作的关系 公文写作中职工和员工的用法如何区别? 地球A和某一行星B的半径之比为R1:R2=1:2,平均密度之比为4:1,若地球表面的重力加速度为10m/s^2那么B行星表面的重力加速度是多少?若在地球表面以某一初速度竖直上抛的物体最高可达20m,那么在B ,一直太阳半径和地球半径之比为110:1,太阳密度和地球密度之比为1:4,取地球表面的重力加速度大小为g一直太阳半径和地球半径之比为110:1,太阳密度和地球密度之比为1:4,取地球表面的重力加速 太阳的半径和平均密度分别为R'和P',地球的半径和平均密度分别为R和P.已知地球表面的重力加速度为g.（1）求太阳表面的重力加速度为g'；（2）若R'=110R,P'=1/4P,g=9.8m/s^2,计算g'的值 Most Americans would prefer to keep their problems ___themselves and solve their problems __themselvesA to .by B by to C for to D in on Most Americans would prefer to keep their problems__themselves,and solve their problems__themselves.A to .by B by to C for to D in on求详解,谢蛤~ keep their hands to their backs的中文意思是什么 It`s not right__your worries__.A to keep for yourself C to keep,to yourself 把1根长6米,横截面为边长5厘米的正方形钢材,熔铸成横截面为边长2厘米的正方形钢材,有多长/ 请问公文写作中意见、决定、通知有什么区别?它们的格式分别是怎么样的? 一根体积是5024立方厘米的圆柱形钢材,横截面的直径是4厘米.截去全长的5分之2,剩下的钢材还有多长? 在day off前是加介词ON 还是介词 IN? day off ,用In On At? on my day off是什么意思一道选择题:---Why didn't you go to visit the Great Wall with your friends last Saturday?---Because it rained_____A.all day B.yesterday C.at that time D.on my day off选什么啊 on my next day off 是什么意思? a day on,not a day 操守带 是什么那是怎么用的?就是绳子之类的吗?困惑. 操守 贞洁操守的意思 在棒球英语专有名词里面,hits和walks是什么意思啊?还有agent某某的a要不要大写?Dr.点后面与名字之间要不要空一格? 1 The kids followed their new teacher ( ) into their new classroom.A,walk B walks Cwalking1 The kids followed their new teacher ( ) into their new classroom.A walk B walks C walking D to walk2 I followed my sister _____ (see) where she was going.foll Their mother walks home every day.对walks提问 —— ——their mother go home every day? ( ),they lost the baseball match because of their carelessness~A:Believe it or not B:If you believe it or not C:Whether believe or notD:You believe it or not