Linguists often use the term native language or mother tongue in

Linguists often use the term native language or mother tongue instead of first language, and t______ language instead of second language in second language acquisition literature.
【正确答案】：target(264)解析:在SLA研究中,研究者经常用本族语和母语这样的术语而不用第一语言,使用目的语的说法而不用第二语言。