题目内容

A data （） is a file that contains metadata - that is, data about data.

A. structure
B. table
C. base
D. dictionary

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在Excel的A1单元格中输入函数“=ROUND（1/3,3）”,按回车键之后，A1中的值为（）

A. 1
B. 1/3
C. 0.34
D. 0.333

The term“software （）” is used to describe the software engineering activities that occur following delivery of a software product to the customer.

A. analysis
B. maintenance
C. design
D. implementation

Unit testing refers to that each （） is tested to ensure that it operates correctly.

A. subsystem
B. device
C. application
D. module

A computer （）is a program that maliciously causes unwanted behavior on a computer.

A. software
B. application
C. virus
D. process