论文部分内容阅读
一、选择题(每题4分,共20分) 1.下列说法正确的是( ) (A)任何一对数都是方程3x-y=2的一个解 (B)二元一次方程组只有一个解 (C)正确求出的方程组的解,一定是组内每个方程的解
First, the multiple-choice questions (each question 4 points, a total of 20 points) 1. The following statement is correct () (A) Any pair is a solution of the equation 3x-y = 2 (B) The solution to a system of equations found correctly in (C) must be the solution to each equation in the group