题目

 ____ surprise us most is that she doesn’t even know ____ the difference between the two lies.   A. What; where   B. All; what                     C. What; what                 D. That; where 答案：A已知方程组2x-y=-3x-2y=-3的解为x=-1y=1，则函数y=2x+3与y=12x+32的交点坐标为  ．