题干
某段导体两端的电压为3V时，通过它的电流为0.6A，则该导体的电阻为____Ω，当导体两端的电压减小一半时，该导体的电阻为____Ω，通过它的电流为____ A，当电路断开时，导体的电阻为____Ω．
答案(点此获取答案解析）
5,5,0.3,5
的解集是
at 6:30 in the morning. I 
at home. Then I 
at 7:10. I
at 7:30. I 
at 11:45. In the afternoon, we 
class. After school, I 
with my friends. In the evening, I 
or 
. I
at 9:00. This is my day.