【单选题】A patient complains of loss of hearing in the right ear. Examination reveals ankylosis (otosclerosis. of the footplate of the stapes to the surrounding bone. Which part of the bony labyrinth is involv...
【判断题】Loading loss includes oil and gas loss at automobile gas stations and oil and gas loss during loading and unloading of trains, cars, ships and other means of transport.This part of the loss is much gr...