正确答案: E

海绵状静脉窦炎

题目：上唇周围和鼻部疖的危险性是由于引起 （ ）

解析：E

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举一反三的答案和解析：

[单选题]连接在相邻椎弓板之间的韧带是( )

黄韧带

[单选题]Dr. Zhang was always ____ the poor and the sick, his private clinic often providing them with free medical care.

concerned about