中国历次一级战备

被除数与除数的和是46,如果被除数与除数都减去7,那么商是3,求原来的被除数和除数.......用方程好吗， 12.6+×=23.45解方程 被除数与除数的和是98,如果被除数与除数都减去9,被除数是除数的4倍.求原来的除数和被除数.(解方程) 被除数与除数的和是98,如果被除数与除数都减去9,那么被除数是除数的4倍,求原来的被除数和除数. 被除数与除数的和是100,如果被除数与除数都减去5,那么被除数是除数的3倍,求被除数和除数. 2012个8的2010次方除以13余数是多少 66的66次方×92的92次方除以13的余数为多少?急, 若有关x的多项式3x^2-2x+b与多项式x^2+bx-1的和中不含有一次项,求b的值；并说明不论x取什么值,这两个多项式的和的值总是正数. 10的13次方除以13的余数是多少 若多项式3x²-2x+b与x²+bx-1的和中不含x项,求b的值 并写出它们的和 不要理由 George,born in 1985,was _A.the only child B.an only child选什么,为什么 除数、被除数的比是1：3,被除数、除数、商的和是35,被除数是（ ）.一个圆柱和一个圆锥的体积比是3：2,底面积的比是2：3,高的比是（ ）. 请问一下哪里错了 Tom was born in washington on the twenty-three of may. 被除数和除数的比是1:3,被除数和商的和是35,被除数是多少? George Washington was the first president of the United States. 除数 被除数的比是1;3 被除除 除数 商 的和是35 被除数是多少 英语翻译eight.When George was fourteen,he became his father's helper.He spent a lot of time learning about engineers (发动机).And on holidays he often made one engine to pieces and studies each piece carefully.Soon he became a very good worker 除数和被除数的比是1：3,被除数、除数、商的和是35,被除数是多少? Washington D.C.was named( )the first President of the U.S.A George WashingtonA from B after C by D with 7^2N+1次方-1的差除以8的余数 5分之3一15分之2+2分之5要化简 化简比3分之2时： 要使关于X,Y的多项式6mx²-8nxy+3x-4xy-x²+y-3不含二次项,求代数式3m-4n. I was born Kentucky is the state _____ Lincoln was born in.A.when B.where C.who D.which Kentucky is the state ____ lincoln was born in .Awhen B Where C who D which 应该选B还是D 为什么?这个题答案给的是B，我觉得也应该是D，但是这里是不是有什么特殊呢？ 连成定语从句 Kentucky is the state.Lincoln was born there. Kentucky is the state ___ Lincoln was born in.A.when B.Where C.who D.which 已知多项式3x三次方+ax²+bx+42能被多项式x²-5x+6整除,求a、b的值 已知多项式3x³＋ax²+bx+42能被多项式x²－5x＋6整除,求a、b的值. 这倒多项式咋做?3X^3 +aX^2+bX+42能被X^2-5X+6整除,求a,b的值 已知 a的2次方+4a+b的2次方-6b+13=0 求a、b的值 若a的2次方+b的2次方+4a—6b+13=0,试求a的b次方的值