A.1% B.3% C.35% D.13%
A.22% B.33% C.55% D.56%
A.氣導、骨導、不舒適閾 B.氣導、舒適閾、不舒適閾 C.氣導、骨導、舒適閾 D.骨導、舒適閾、不舒適閾 E.氣導、言語分辨率、不舒適閾