冲洗液由上或下泪点进入后,从另一泪点返流症状的是()
A.鼻泪管不全阻塞或狭窄
B.泪总管阻塞
C.鼻泪管阻塞合并慢性泪囊炎
D.泪小管阻塞
E.功能性泪溢
参考答案:B
We give dogs time, space and love we can spare, and _____, dogs give us their all. [ ]
A. in all
B. in fact
C. in short
D. in return
黄曲霉毒素的基本结构是都有()和香豆素,在紫外线照射下都发生()。