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函数f(x)= http://picflow.koolearn.com/upload/2014-01/10/5cea0808-5064-4a4c-92b6-ed4336eb034a/paper.files/image014.png+lg(-3x 2+5x+2)的定义域是 (  )

发布时间:2021-08-04

A.http://picflow.koolearn.com/upload/2014-01/10/5cea0808-5064-4a4c-92b6-ed4336eb034a/paper.files/image015.png

B.http://picflow.koolearn.com/upload/2014-01/10/5cea0808-5064-4a4c-92b6-ed4336eb034a/paper.files/image016.png

C.http://picflow.koolearn.com/upload/2014-01/10/5cea0808-5064-4a4c-92b6-ed4336eb034a/paper.files/image017.png

D.http://picflow.koolearn.com/upload/2014-01/10/5cea0808-5064-4a4c-92b6-ed4336eb034a/paper.files/image018.png

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