80. Asakawa, 45, has spent the past eight years making the Internet a friendly place for people who can’t see. In 1997 her research group at IBM Japan put out one of the world’s first browsers specifically made to read aloud the contents of Web pages. And last July, her team released software that helps Web designers figure out how to make their home pages accessible to people with poor or no eyesight. 查看更多

 

题目列表(包括答案和解析)

已知命题:函数的图像必过定点;命题的图像关于轴对称,则函数关于直线对称,那么      (       )

A 、为真               B、为假

C、                     D、                                                                                                                                                                                                                                       

 

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已知命题:函数的图像必过定点;命题的图像关于轴对称,则函数关于直线对称,那么      (       )

A 、为真               B、为假

C、                     D、                                                                                                                                                                                                                                       

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如果方程lg2x(lg2lg3)lgxlg2·lg30的两根为x1x2,那么x1·x2的值为(        )

Alg2·lg3                                                             Blg2lg3

C                                                                 D.-6

 

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在数列{An}中,A1=1,A2=5,An+2=An+1An(nN*),A1000等于(  

A.5                                                               

B.5

C.1                                                               

D.1

 

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有以下四个结论,其中正确的是(       )

lg(lg10)0;lg(lne)0;③若10lgx,x10;④若elnx,xe2

A.①③                                                                         B.②④

C.①②                                                                         D.③④

 

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