交流单相回路的电力电缆,不得有金属带、钢丝铠装。( ) 发布时间:2018-05-31 13:32 │ 来源:www.tikuol.com 题型:判断题 问题: 交流单相回路的电力电缆,不得有金属带、钢丝铠装。( )
题型:判断题 While there are some differences in the educational systems in many countries in the world, educationis________. [ ]A. regular B. universalC. ordinary D. normal 查看答案