【单选题】变压器的初、次级电动势 E1 、 E2 和初、次级线圈匝数 N1 、 N2 之间的关系为 ( ) 。
【单选题】变压器的初、次级电动势E1、E2和初、次级线圈匝数N1、N2之间的关系为()。
【单选题】We give dogs time, space and love we can spare, and ____________, dogs give us their all.
【单选题】We give enough time, space and love we can spare, and _____,dogs give us their all. [ ]
【单选题】We give dogs time,space and love we can spare,and ________ dogs give us their all.
【单选题】We give dogs time, space and love we can spare, and ________, dogs give us their all.(2010·江西)
【单选题】变压器的初、次级电动势E1、E2和初、次级线圈匝数N1、N2之间的关系为()。
【单选题】We give dogs time, space and love we can spare, and _______, dogs give us their all.
【单选题】变压器的初、次级电动E1势1、E2和初、次级线圈匝数N1、N2之间的关系为()。
【单选题】变压器的初、次级电动势E1、E2和初、次级线圈匝数N1、N2之间的关系为( )。