In English, “pill” and “bill” are （）.

单项选择题As modern linguistics aims to describe and analyze the language people actually use, and not to lay down rules for correct linguistic behavior,it is said to be （）.

A.prescriptive
B.sociolinguistic
C.descriptive
D.psycholinguistic

名词解释什么是Duality; Duality名词解释定义是什么?

名词解释什么是acculturation; acculturation名词解释定义是什么?

名词解释什么是registers; registers名词解释定义是什么?

名词解释什么是ethnic dialect; ethnic dialect名词解释定义是什么?