【判断题】电流互感器的一次绕组匝数很多,并联在线路里,其电流大小取决于线路的负载电流,由于接在二次侧的电流线圈的阻抗很小,所以电流互感器正常运行时,相当于一台开路运行的变压器。()
【单选题】If you are not _____ by then, I`ll take you to see the doctor. [ ]
【单选题】`-You'd better early.It is good for your health.-Thanks.I'll do as you say.
【判断题】静态显示适用于多位数码管的连接,因此它的编程方法简单
【判断题】作业成本法因产品成本计算的精确性而产生。
【单选题】I heard you didn`t feel well. How are you now?
B.
Thanks for everything.
C.
I am going to see the doctor.
D.
Much better, thank you.
【单选题】电压互感器的一次绕组匝数很多, 二次绕组匝数很少, 而且二次侧的额定电压一般为( )。