【简答题】基尔霍夫电流定律中指出“在任何时刻,流入任何结点的电流总和 流出支点的电流总和”,基尔霍夫电压定律中指出“在任何时刻,沿任一回路参考绕行方向,回路中的各段电压和恒等于 ” 。
【单选题】Dr. Lee gives Emi some advice. What does she say?
A.
You must see me next week.
B.
You must see me next month.
C.
You need to take it easy for a few days.
【单选题】程控数字交换机主要采用ISDN定义的2B+D基本接口BRA,其中D信道的速率是()kb/s
【单选题】( )是指当外界条件发生变化时,其计划能够较快地作出调整以适应变化的能力。
【判断题】Dr. Perella gives his show to his patients on TV.
【单选题】In 1927 Benjamin Franklin founded one of the first adult-education organizations, ____ the Junto.