The world has about 3000 languages, which can be grouped into ro

The world has about 3000 languages, which can be grouped into roughly 300 language families on the basis ofsimilarities in their basic word stock and______.
A、grammar
B、construction
C、pronunciation
D、notion
【正确答案】：A
【题目解析】：世界上有3000多种语言，大概有300个语族，每个语族共有的特点是基本词汇相似和语法相似。