My friends and I
I'm a Chinese boy. My name is Li Qiang. I'm ten years old. I'm in Class 2, Grade 4 in No. 2 Middle School. I have a good friend. His name is Tom. He is an American boy. He is eleven years old. We are
同一坐标平面内,图象不可能由函数y=2x2+1的图象通过平移变换、轴对称变换和旋转变换得到的函数是( )