初中数学二元一次方程组的解法基础题

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1、初中数学二元一次方程组的解法基础题一、单选题(共10道，每道10分)1.若是二元一次方程，那么a、b的值分别是（）.A.1,0B.1,1 C.2,1D.3，-1 2.方程x-2y=5在整数范围内的解有（）A.1组B.3组 C.5组D.无数组 3.下列选项中属于二元一次方程组有（）个. ①②③④⑤A.2B.3 C.4D.5 4.方程组的解为（）.A.B. C.D. 5.方程组的解为（）.A.B. C.D. 6.方程组的解中y的值是x的两倍，则k=（）第3页共3页A.B. C.D. 7.方程组的解是的一

2、个解，则=（）A.1B.2 C.0D.-1 8.若方程组与的解相同,则a,b值为（）A.a=33,b=B.a=33,b= C.a=-33,b=D.a=-33,b= 9.下列图象中，以方程-2x+y-2=0的解为坐标的点组成的图象是（）A.B. C.D. 10.若方程组有无数组解，则k与m的值分别为()A.k=1，m=1B.k=2，m=1 C.k=2，m=-2D.k=2，m=2 第3页共3页9JWKffwvG#tYM*Jg&6a*CZ7H$dq8KqqfHVZFedswSyXTy#&QA9wkxFye

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