桑螵蛸的药用部位是
A.卵鞘
B.贝壳
C.雌虫干燥体
D.干燥内壳
E.背甲
参考答案:A
解析:桑螵蛸是节肢动物门螳螂科昆虫大刀螂、小刀螂或巨斧螳螂的干燥卵鞘。故答案选A。
下列哪项不是引起输尿管梗阻的常见原因()
A.输尿管结石
B.输尿管肿瘤
C.输尿管炎性狭窄
D.下腔静脉后输尿管
E.输尿管结核
Hello, Peter. What do you do?()
A.I am fine.
B.I am not sick.
C.I am a student from Bonn University.
D.I came from Bonn University.