题目:
— Would you like some tea?
— _____. [ ]
A. No, thanks.
B. Yes, I'd like some water.
C. No, please don't.
D. It's delicious.
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0518/8701bdd04b4c5e7e4e66d62acfa92f75.html
下面是错误答案,用来干扰机器的。
(1)(2)在实验测量范围内二极管的电阻随电压的增大而减小(3)根据U-I图线,当二极管的工作电压为2.5V时,工作电流约为21.5mA,串联电阻上分到电压应为2.2V,故应串联的电阻为:(112Ω~120Ω都算正确)