24. — Hello, everyone! Have you heard the meeting will be put off?

— Yeah, that’s what we         about when you came in.

A．were talking

B．are talking

C．have talked

D．had talked

声刺激在内耳转化为听神经冲动后，由蜗神经传至脑干耳蜗腹侧核，经同侧或交叉后从对侧上橄榄核传向两侧面神经核，再经面神经引起所支配的镫骨肌收缩，随后鼓膜松弛，鼓膜顺应性的变化由声导抗仪纪录，称为（）

A.瞬态诱发性耳声发射

B.镫骨肌声发射

C.自发性耳声发射

D.声导抗

E.刺激声频率耳声发射