题目内容

The last worksheet in a workbook is often a summary of the preceding worksheets.

A. 对
B. 错

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What-if analysis is a very powerful and simple tool to test the effects of different assumptions in a spreadsheet.

A. 对
B. 错

In a database, primary keys are often used to link tables.

A. 对
B. 错

Worksheets are only used for a limited types of applications.

A. 对
B. 错

Presentation graphics software is an excellent tool to communicate a message and to persuade people.

A. 对
B. 错

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