Semantics is the study of meanings of different（） levels：lexis,

Semantics is the study of meanings of different（） levels：lexis, syntax, utterance, discourse, etc.
A、linguistic
B、grammatical
C、arbitrary
D、semantic
【正确答案】：A
【题目解析】：Semantics is the study of meanings of different linguistic levels: lexis, syntax，utterance，discourse，etc.语义学研究不同语言层次的意义，如词汇、句法、语调、话语等。答案为A