Acoustic phoneticians try to describe the ______ properties of t

Acoustic phoneticians try to describe the ______ properties of the stream of sounds which a speaker issues.
A、physical
B、psychological
C、biological
D、phonological
【正确答案】：A
【题目解析】：语音学三大分支：发音语音学是对语音产生的研究；声学语音学研究语音的物理性质；听觉语音学研究如何被听者感知的声音。