【简答题】在如图 11 所示的电路中,已知 R 2 =R 4 , A 、 C 间电压 U AC = 15V , B 、 D 间电压 U BD = 7V ,则 A 、 E 间 U AE =______ 。
【单选题】Instead of devoting large parts of our days ______ our loved ones, we replace them with something called "quality time," which, more often than not, is ____ time at all.
【简答题】Do you think the following paragraph unified? Please Justify your reason in no less than 20 words. 1. There are few places in the world today that have not been spoiled by industrial development and p...
【简答题】如图(a)所示电路中,直流电压源U S =100V,R 1 =5Ω,R 2 =15Ω,R 3 =10Ω,电路原已达到稳态。在t=0时,断开开关S,试求t=0 + 时i L 、u C 、u R2 、u R3 、i C 、u L 。
【判断题】现场勘查的任务是收集犯罪信息和证据、分析判断案情、初步确定侦查方向和范围、储存现场信息资料。