题目

The more women and minorities make their way into the ranks of management, the more they seem to want to talk about things formerly judged to be best left unsaid. The newcomers also tend to see office matters with a fresh eye, in the process sometimes coming up with critical analyses of the forces that shape everyone's experience in the organization. Consider the novel views of Harvey Coleman of Atlanta on the subject of getting ahead.  Coleman is black.  He spent 11 years with IBM, half of them working in management de­velopment, and now serves as a consultant to the likes of AT&如图所示，电源电压且保持不变，电阻为定值电阻．当开关闭合后，如果要使电路消耗的总功率稍稍变化一些，则可行的办法是A. 给串联一个较小的电阻 B. 给并联一个较小的电阻C. 给串联一个较大的电阻 D. 给并联一个较大的电阻