以下颈部疾病，与先天胚胎发育无关的是（）。
A.颏下皮样囊肿
B.甲状腺舌管囊肿
C.囊状淋巴管瘤
D.结节性甲状腺肿
E.胸腺咽管囊肿
参考答案：D
机动车在道路上行驶时，属于交通陋习的是什么行为
A．按规定使用灯光
B．带行驶证、驾驶证
C．随意向车外抛洒物品
D．遵守交通信号
Precautionary areas and IMO adopted TSS have been established through the straits between Permatang Sedepa (One Fathom Bank) and the entrance to South China Sea in the vicinity of Horsburgh Light.In this sentence,“TSS”is the abbreviation of（）.
A.Traffic Selection Scheme
B.Traffic Solution Scheme
C.Traffic Separation Scheme
D.Traffic Separation system
