题目

选词填空 fall in love with, join in, add to, come up with, on stage, together with （1） His first appearance was at the age of three. （2） They a good way to settle the problem at the meeting. （3） What a beautiful place! I it at the first sight. （4） I am very busy at present, and I can't your game. （5） He works well them. （6） The soldiers were extremely tired and the heavy rain their difficulty.如图所小小灯泡L标有25V 的字样，闭合开关S 后灯泡L 正常发光，电流表、电压表的示数分别为0.14A 和6V， 试求： ( 2 ）此时灯泡L消耗的电功率。（3）若将乙换成一个“2.5V，0.2A” 的小灯泡L’时，则L’能正常发光吗?此时L’的实际功率是多大?