dialects are characteristic of ______ a particular type of lingu

dialects are characteristic of ______ a particular type of linguistic activity and appropriate for use in particular speech situations. ()
A、Social
B、Ethnic
C、Regional
D、Situational
【正确答案】：D
【题目解析】：(P193)解析:语域是与一定交际情景相适应的语言变体。正鉴于此,语域又被称为语言的情景变体。