高中数学代数与函数一函数练习题78
题目内容

.函数 http://picflow.koolearn.com/upload/2013-01/17/ff7a28f8-5935-4a61-91be-038a710269fe/paper.files/image039.png= http://picflow.koolearn.com/upload/2013-01/17/ff7a28f8-5935-4a61-91be-038a710269fe/paper.files/image040.png的定义域为(   )

2021-08-04

A.[1,+∞)

B.[http://picflow.koolearn.com/upload/2013-01/17/ff7a28f8-5935-4a61-91be-038a710269fe/paper.files/image041.png,1]

C.(http://picflow.koolearn.com/upload/2013-01/17/ff7a28f8-5935-4a61-91be-038a710269fe/paper.files/image042.png,+∞)

D.(http://picflow.koolearn.com/upload/2013-01/17/ff7a28f8-5935-4a61-91be-038a710269fe/paper.files/image042.png,1]

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