后天性原发性胆脂瘤
参考答案：
因咽鼓管功能不良，鼓膜松弛部袋状内陷形成的胆脂瘤称为后天性原发性胆脂瘤，在胆脂瘤形成之前可不经历化脓性中耳炎阶段。
青少年甲亢患者（）
A．抗甲状腺药物治疗
B．手术治疗
C．131I治疗
D．甲状腺素治疗
E．观察
A shore is a piece of securing dunnage that（）.
A.runs from a low supporting level up to the cargo at an angle
B.is also known as a distance piece
C.is placed on the deck under the cargo to distribute its weight evently
D.is run horizontally from a support to the cargo
