【判断题】The text is narrated in time order.
【单选题】我国动力和照明用电的标准频率为()Hz。
【单选题】在 OSI 的( )描述了各种不同的网络介质。
【简答题】我国动力和照明用电的标准频率为( )Hz,习惯上称为工频。
【单选题】What type of text do you think this text is?
A.
A story narrated from the first person (“I”).
【判断题】我国动力和照明用电的标准频率为50 Hz ,习惯上称为工频。( )
【单选题】在OSI的( )描述了各种不同的网络介质
【简答题】自然界中的物质,按导电性分类可分为哪三大类?并列举实例来说明。
【简答题】我国动力和照明用电的标准频率为 _ _ Hz,习惯上你为工率,角频率是 rad/s。
【简答题】Main Idea What is the story narrated in the text about? The story is the author's recall of an experience in his childhood. He had heard from old folks about the myth of Jesus saving _1_ , and as a c...