高中数学代数与函数一函数练习题74
题目内容

函数 http://picflow.koolearn.com/upload/2010-11/23/671d6610-be93-4b94-b055-810e6bc5a2e3/paper.files/image010.gifhttp://picflow.koolearn.com/upload/2010-11/23/671d6610-be93-4b94-b055-810e6bc5a2e3/paper.files/image011.gif的定义域为(  )                                        

2021-08-03

A.(http://picflow.koolearn.com/upload/2010-11/23/671d6610-be93-4b94-b055-810e6bc5a2e3/paper.files/image012.gif,+∞)

B.[1,+∞http://picflow.koolearn.com/upload/2010-11/23/671d6610-be93-4b94-b055-810e6bc5a2e3/paper.files/image013.gif

C.( http://picflow.koolearn.com/upload/2010-11/23/671d6610-be93-4b94-b055-810e6bc5a2e3/paper.files/image012.gif,1http://picflow.koolearn.com/upload/2010-11/23/671d6610-be93-4b94-b055-810e6bc5a2e3/paper.files/image014.gif

D.(-∞,1)

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