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函数中自变量的取值范围是
A.x≠0
B.x≠2
C.x≠-2
D.x=2
函数中自变量x的取值范围是
A.x≥-1 B.x≤-1 C.x≠-1 D.x=-1
A.x≠-1
B.x≠0
C.x=0
D.x≠1
A.x≥-1
B.x≤-1
C.x≠-1
D.x=-1
函数y=中自变量x的取值范围是( )
A.x≥-1 B.x≤-1 C.x>-1 D.x<-1