颈部中线随伸舌移动的小肿块可能是下列哪一种病()
A.甲状舌管囊肿
B.皮脂腺囊肿
C.舌下囊肿
D.鳃裂囊肿
E.错构瘤
参考答案:A
On the top of the hill _________ the old man once lived.
A.a temple stands there in which
B.stands a temple where
C.a temple standing on which
D.does a temple stand where
核酸是由()聚合而成的。