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(2007•芜湖)函数:中自变量x的取值范围是A.x≥-1B.x≠3C.x≥-1且x≠3D...
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(2007•芜湖)函数:
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RK5CYII=
)
中自变量x的取值范围是( )
A.x≥-1
B.x≠3
C.x≥-1且x≠3
D.x<-1
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