【单选题】{ -Who is boy playing soccer overt here? }{ -He is my classmate, Li Ping. }
【单选题】The boy __is playing ping-pong is my classmate.
【简答题】无线局域网的标准是IEEE802.()。
【简答题】调查报告是一种常用的___________的应用文体。
【判断题】无线局域网的标准是IEEE802.5。( )
【单选题】The student _____ is reading a book is my classmate.
【简答题】普通语言学的奠基人是 和 。《 》在语言学发展史上起到了划时代的作用。