PASOLINKNEC设备的直流供电电压是（）。A.+24V B.-24V C.+4 发布时间：2020-02-14 00:23 │ 来源：www.tikuol.com 题型：单项选择题 问题： PASOLINKNEC设备的直流供电电压是（）。A.+24VB.-24VC.+48VD.-48V
题型：单项选择题 Tom is _____ late for school. He goes to school early every day.A. always B. often C. never D. seldom 查看答案