咽鼓管在鼻咽部的膨大部形成-喉囊(咽鼓管囊),此特属于()
A.牛
B.羊
C.猪
D.马
E.犬
参考答案:D
-People in Colombia needn’t make plans to meet their friends. They often just drop by them.
A.give a ride to
B.give up visiting
C.forget to visit
D.come over to
下列哪项是肺癌肺叶切除术后支气管胸膜瘘的原因
A.支气管残端处理不当
B.术后患者咳嗽
C.支气管残端残留阳性
D.支气管残端感染
E.术后胸腔感染