耳蜗中部受损时,出现的听力障碍主要为()
A.低频听力
B.高频听力
C.中频听力
D.中低频听力
E.高中频听力
参考答案:C
—Do you know ______ we'll get there at 3:00 this afternoon?
—I'm afraid we'll be late. [ ]
A. that
B. how
C. why
D. if