慢性泪囊炎
参考答案:各种原因(如鼻黏膜炎症蔓延、泪囊肿物、异物、外伤等)造成的泪囊黏膜及其周围组织的炎症,称为慢性泪囊炎。
— Hey! Lucas! Have you heard about the selective courses this year?
— _______. What about that? [ ]
A. Not really
B. Not exactly
C. Not simply
D. Not nearly
双胎输血综合征新生儿的诊断标准正确的是().
A.两新生儿体重相差>20%
B.两新生儿Hb值相差>50g/L
C.可发生在双卵双胎
D.两新生儿Hb值相差<50g/L
E.两新生儿体重相差>30%