20. 顳顎關節的關節處涵蓋哪兩塊骨頭?(A)顳骨 Temporal bone、頦隆凸 Mental protuberance(B)蝶骨 Sphenoid bone、下顎喙狀突 Coronoid process of the mandible(C)顳骨 Temporal bone、下顎髁 Mandibular condyles(D)以上皆非