关于静电场的电场强度与电势,下述说法中错误的是[ ]
A. 电场强度大处,电荷的电势能不一定大
B. 等势面上各点电势一定相等
C. 电场中电势高处,电荷的电势能就大
D. 在同一等势面上移动电荷,电场力不做功
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统计总体的特征表现为()
A. 大量性
B. 数量性
C. 同质性
D. 差异性
Application software examples include office suites, video games, and the World Wide Web, etc.
A. 对
B. 错
Word processing, database managers, and spreadsheets are the most important computer applications.
A. 对
B. 错
Application software is also called end-user programs.
A. 对
B. 错