公元前3世纪中叶，一支来自中亚的游牧部落进入了伊朗东北部，建立了帕提亚王国，我国史书上称之为（ )。
A．波斯 B．安息 C．伊朗 D．天竺
What is linguistic determinism？
Taboo and______are two faces of the same communication coin.
Why do we need to teach culture in our language classroom？
What distinction, if any, can you draw between bilingualism and diglossia？
