问题
填空题
小阳在实验室测量小灯泡的电功率当小灯泡两端电压为3V时,通过小灯泡的电流如图所示,此时通过小灯泡的电流为_________A,小灯泡的电功率为_________W。
答案
0. 48;1.44
小阳在实验室测量小灯泡的电功率当小灯泡两端电压为3V时,通过小灯泡的电流如图所示,此时通过小灯泡的电流为_________A,小灯泡的电功率为_________W。
0. 48;1.44
选择方框中的句子完成对话 | |
B: 1 I have a cold. A: I'm sorry to hear that. 2 B: But I'm busy and I must finish the report. A: 3 Then you can give the report to him later. B: Maybe you're right. 4 A: Don't say that. 5 You'd better lie down and have a good rest now. B: OK, I'll ask for leave right away. Thank you very much. |