在题1-46图非正弦电路中,已知ωL=300Ω,,R=250Ω,外加电压,求得电感中的电流iL(t)为()。
A.
B.
C.
D.
参考答案:C
-–She looks very happy. She ________have passed the exam.
--I guess so. It’s not difficult after all.
A.should
B.must
C.could
D.might
蟾酥中毒可用
A.白萝卜或白菜捣烂取汁加糖频饮B.土茯苓煎汤饮C.生姜捣汁、鲜芦根捣汁内服D.肉桂煎汤内服E.绿豆、甘草、生姜、蜂蜜煎汤内服