【单选题】R-L-C 串联电路中, R=3Ω ,Xl=4Ω ,Xc=8Ω, 则| Z |的值为
【单选题】I __________my sister but she has one serious _________.
C.
was fond of ;shortcoming
D.
am fond of; shortcoming
【单选题】R-L串联电路中,R=3Ω , Z=5Ω,则XL等于
【单选题】R-L 串联电路中, R=3Ω,|z|=5Ω ,则XL 等于
【单选题】I dont think she knows how to dress herself properly. ______is not to my taste.