Chomsky's competence' and performance are similar in meaning to Saussure‟s langue and parole.()
In modern linguistic studies, the written form. of language is given more emphasis than the spoken form. for a of reasons.()
Duality and cultural transmission are two most important design features of human language.()
组成DNA分子的碱基成分包括
ACUG
B. ATGC
C. IAGC
D. TAG和稀有碱基
E. CAG和稀有碱基