在對數(shù)式中,實數(shù)a的取值范圍是                     

A.(2,3)                                                 B.(2,3)∪(3,6)

C.(2,6)                                                 D.(2,4)∪(4,6)

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科目:高中數(shù)學 來源: 題型:

(08年調(diào)研一文)在對數(shù)式中,實數(shù)a的取值范圍是                            (    )

      A.(2,3)                                             B.(2,3)∪(3,6)

      C.(2,6)                                             D.(2,4)∪(4,6)

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在對數(shù)式b=log(a-2)(5-a)中,實數(shù)a的取值范圍是

A.a>5或a<2                                                B.2<a<5

C.2<a<3或3<a<5                                     D.3<a<4

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