It is assumed that the world has approximately 3000 (some put it 5000) languages, which can be grouped into roughly（）language families on the basis of similarities in their basic word stock and grammar.
A.500 B.4000 C.300 D.2000正确答案C
It is assumed that the world has approximately 3000 (some put it 5000) languages, which can be grouped into roughly（）language families on the basis of similarities in their basic word stock and grammar.
A.500 B.4000 C.300 D.2000正确答案C
