题干
—I’m sorry. I ___________ at you yesterday.
— Forget it. I was also a bit out of control myself then.
— Forget it. I was also a bit out of control myself then.
A：shouldn’t shout
B：mustn’t shout
C：shouldn’t have shouted
D：mustn’t have shouted
答案(点此获取答案解析）
C
绕制螺线管的金属丝电阻率为ρ，直径为D，阻值约几十欧
