【单选题】The languages of uncivilized groups as compared with Western languages are limited in ______.
B.
grammatical structures
D.
ability to transfer ideas
【单选题】控制法的训练形式为( )、问题和回答、引导式写作、组句组段练习、平行写作。
【判断题】Language Family is a hypothesis for dividing languages into groups and the languages in each group are related by a common ancestor.()
【单选题】Some artificial languages, for example sign languages of deaf communities, later become _____.
C.
international lanugages