【单选题】Nowadays many young couples their parents, which is not good.
【单选题】如图所示电路,已知每个线圈的自感均为2H,每两个线圈间的互感均为1H,则a、b间的等效电感为__H。
【单选题】Last year Mr. Johnson sold his house at a good____.
【单选题】Many young couples ( ) their parents, which is not good.
【判断题】责任保险的保险责任就是民事损害赔偿责任。
【单选题】电路如图所示,已知每个线圈的自感均为 2 H ,互感均为 1 H ,则 ab 间的等效互感为( ) H
【单选题】Last year Mr.Johnson sold his house at a good___.
【单选题】Last year Mr. Johnson sold his house at a good ____.