挑战习题
1/5单选题
难度:

1.如果9是关于x的分式方程的解,则a的值是( )
A
B
C 2
D 3
提示1:
IOWwhjnku6PlhaXmraTliIblvI/mlrnnqIvljbPlj6/msYLop6M=
正确答案:Qw==
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