选择题:A.220sin(ωt+90°)V 题目分类:国家电网招聘 题目类型:选择题 号外号外:注册会员即送体验阅读点! 题目内容: A.220sin(ωt+90°)V B.220sin(ωt-30°)V C.220sin(ωt-150°)V D.220sinωtV 参考答案:【答案仅供学习,请勿对照自行用药等】 答案解析: