试题与答案

上颌穿刺正确的部位是() A.下鼻道前端,距前鼻孔1.0cm处 B.下鼻道顶部,距下

题型:单项选择题

题目:

上颌穿刺正确的部位是()

A.下鼻道前端,距前鼻孔1.0cm处

B.下鼻道顶部,距下鼻甲前端1.5cm处

C.鼻阈之鼻腔外侧侧壁

D.下鼻道后部

E.以上都不对

答案:

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