若关于a、b、c的单项式23abnc2是5次单项式,则n=. 发布时间:2017-06-03 19:31 │ 来源:www.tikuol.com 题型:填空题 问题: 若关于a、b、c的单项式23abnc2是5次单项式,则n= .
题型:填空题 直流电弧熄灭时在线路内串入电阻可以使().A、电弧伏安特性上移而与电路伏安特性脱离B、电弧伏安特性下移而与电路伏安特性脱离C、电路伏安特性上移而与电弧伏安特性脱离D.电路伏安特性下移而与电弧伏安特性脱离 查看答案
题型:填空题 13. After working hard for many years, .A.his dream was realizedB.his dream came trueC.he came true his dreamD.he realized his dream 查看答案