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函数y=自变量x的取值范围是________.
函数y=自变量x的取值范围是__________.
函数y=自变量x的取值范围是
A.x≤-
B.x≥-
C.x≥
D.x≤
[ ]
A.3<x≤14 B.3<x<14 C.3≤x<14 D.x≤14
函数y=自变量x的取值范围________.