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计算机期末复习练习2

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计算机期末复习练习2

题目内容

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52.A handheld is typically used as an electronic appointment book, address book, calculator, and notepad. ( )

A、　mainframe

B、　PDA

C、　laptop

D、　desktop computer

答案：C

计算机期末复习练习2

98.Wireless signals can be disrupted by . ( )

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8.Architects and engineers typically use digitizing tablets to transfer points from paper-based drawings into digital format. ( )

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18.Most database software includes tools to create all of these EXCEPT . ( )

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1.Installed on the original IBM PCs, used a command-line interface that simply displayed a “prompt” such as C:\ on the screen and waited for users to type commands. ( )

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15.A digital device works with continuous data. ( )

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161.Voice,over IP ( ) carries voice conversations over a _.

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31. software helps a business keep track of the money flowing into and out of various accounts. ( )

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30.In the context of computing, software refers to symbols that represent facts, objects, and ideas. ( )

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151.Computer networks often incorporate some type of centralized device to handle communications, such as_.

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45.Contrast ratio is the difference between the luminance of white and black pixels.

题目内容

(

单选题

)

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计算机期末复习练习2

52.A handheld is typically used as an electronic appointment book, address book, calculator, and notepad. ( )

A、　mainframe

B、　PDA

C、　laptop

D、　desktop computer

答案：C

相关题目

98.Wireless signals can be disrupted by . ( )

A. 　interference from electrical appliances

B. 　hills, valleys, trees

C. 　brick walls and concrete floors

D. 　all of the above

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8.Architects and engineers typically use digitizing tablets to transfer points from paper-based drawings into digital format. ( )

A. 正确

B. 错误

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18.Most database software includes tools to create all of these EXCEPT . ( )

A. 　electronic forms

B. 　insight lists

C. 　queries

D. 　reports

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1.Installed on the original IBM PCs, used a command-line interface that simply displayed a “prompt” such as C:\ on the screen and waited for users to type commands. ( )

A. 　Linux

B. 　DOS

C. 　Unix

D. 　HTML

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15.A digital device works with continuous data. ( )

A. 正确

B. 错误

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161.Voice,over IP ( ) carries voice conversations over a _.

A. 　 telephone network

B. 　 cable network