简答题_____ refers to the phenomenon that those who do not share a first language communicate with each other in a language that they know. A、national language B、lingua franca C、official language D、world language简答题Interference of code may happen at the _____. A、phonetic level B、lexical level C、syntactical level D、textual level简答题An individual must therefore belong to various speech communities at the same time, but on any particular occasion will identify with one of them, the particular identification depending on what is especially important or contrastive in the circumstances.简答题If we want to know more about a given society or community by examining the linguistic behavior of its members, we are doing sociolinguistic study of society. That is, we are doing sociolinguistics on a level of investigation. A、narrow B、macro C、micro D、first简答题Sociolinguistics will focus on the studies of the social factors which influence the use of human language.简答题Linguistic differences present greater obstacles to communication than cultural differences do.简答题Linguistic variations include: _____. A、social differences B、contextual differences C、regional differences D、above all简答题Code-switching is a phenomenon in a conversation between multilinguals, who alternate from one language to the other out of communicational convenience or preference.简答题And male speakers are heard to use the low-rise intonation with statements much more frequently than female speakers.简答题From a sociolinguistic perspective, _____ can all influence an individual's use of particular phonological, structural, lexical, and discourse features of a language. A、geographical location B、ethnic background C、social class D、gender