问题 单项选择题 A2型题

一患者因下颌第一磨牙断根常规难以拔除,故行翻瓣去骨法将断根取出,术后组织瓣近中缝合处出现塌陷、伤口裂开,愈合延迟。可能的原因是()。

A.手术创伤较大,伤口恢复较慢

B.瓣底窄、游离端宽

C.瓣下无骨组织支撑

D.瓣设计得过大

E.复位不正确

答案

参考答案:C

解析:在行翻瓣去骨法拔除断根或行其他手术时,要求瓣的下方必须有骨的支持,这样才能有良好的血运及减小组织瓣的张力及组织瓣与骨组织的贴敷,故C正确。

完形填空
My dream home is very big and clean. It is near the        . I can watch the sea and    volleyball on the beach. My grandparents live       us in this big house.       room is      the first floor(层), too. I always chat with them and help them    some housework at weekends.   On the     floor,there is a kitchen and a dinning room.All the family     will have dinner there . My bedroom ,study  and bathroom are on the third floor.There is a big balcony(阳台) in my bedroom. I can play games, read books and chat      my friends there. The furniture in my house is all made of wood .It is good    my health.I like    to music while reading books  in my bedroom, I always ask my friends    here. My parents’ room is on the fourth floor. It’s       very big and clean.
There is a big and nice garden behind the big house. There are many flowers and       tall trees in it.  In summer, I can sit under the trees with my family. Behind the garden, there is a swimming pool. I can         freely in it . I think it is very comfortable(舒服) to live in my dream home.
小题1:
A.riverB.seaC.groundD.school
小题2:
A.playB.to playC.play theD.play with
小题3:
A.atB.forC.withD.of
小题4:
A.TheirB.HerC.OurD.Your
小题5:
A.inB.onC.withD.of
小题6:
A.doesB.doingC.doD.is doing
小题7:
A.fourthB.thirdC.firstD.second
小题8:
A.petsB.membersC.thingsD.animals
小题9:
A.ofB.aboutC.withD.on
小题10:
A.atB.toC.withD.for
小题11:
A.listeningB.leadingC.withingD.doing
小题12:
A.to look forB.to cheanC.to comeD.to leave
小题13:
A.alsoB.tooC.eitherD.but
小题14:
A.fewB.a fewC.littleD.a little
小题15:
A.swimB.danceC.readD.run
单项选择题