集成运放的共模抑制比KCMR越大，表示（ ）。 A. 最大共模输入电压越大 B. 对差模信号的放大能力越强 C……

单项选择题曲面所围成的体积为

问答题16.The resource condition of competitors. Through the analysis of competitors' management, organization, finance, marketing and other competitive capabilities, and then compare the advantages and disadvantages between yourself and your rivals, so as to provide reliable reference for the final strategic positioning of the enterprise.