A:①②④⑤⑥
B:①②③④
C:②③④⑤⑥
D:①③④
—Whatever the result is, don't be too hard on yourself.
关于x、y、z的方程组x+y=a1y+z=a2z+y=a3中,已知a1>a2>a3,那么将x、y、z从大到小排起来应该是( )