题目内容

In logical data flow diagrams, the type of physical storage is unspecified.( )

查看答案

搜索结果不匹配？点我反馈

更多问题

A use case summarizes an event and defines one activity.( )

Ajax may be used to obtain data for a Web form without changing Web pages.( )

Sampling helps accelerate the process by gathering selected data rather than all data for the entire population.( )

Data-gathering bias can be reduced by sampling.( )