互感系数的大小反映一个线圈电流变化时在另一线圈产生互感电势的能力。
参考答案:对
根据句意,同所给词的适当形式填空。(每题1分,共5分)
小题1:Eric is the __________ (win) of the singing competition.
小题2:Tom always works hard. He listens to the teachers _________ (careful) than others.
小题3:Wuhan is __________ (hot) city of the three.
小题4:My parents enjoy __________ (live) in the countryside.
小题5:My mother expects me ___________ (be) a reporter.
平第二骶后孔,督脉旁开1.5寸的腧穴是()。
A.小肠俞
B.膀胱俞
C.中膂俞
D.胞肓
E.秩边