（ ） belongs to the sub-standard language, a category that seems to stand between the standard general words including informal ones available to everyone and in-group words.
A、Terminology
B、Jargon
C、Slang
D、Argot
【正确答案】：C
【题目解析】：俚语的概念Slang is a category that seems to stand between the standard general words including informal ones available to everyone and in-group words.