问题 单项选择题 共用题干题

患者右下第1磨牙大面积银汞合金充填,远中食物嵌塞,要求修复

如果此牙为死髓牙,牙冠缺损3/4,未行根管治疗,根长大,牙槽骨良好则最佳的治疗方案为()

A.根管治疗后全冠修复

B.根管治疗后铸造桩核加全冠修复

C.根管治疗后银汞充填加全冠修复

D.根管治疗后嵌体修复

E.以上都不是

答案

参考答案:B

阅读理解

“Earthquake!”The word flashed in my brain.A roaring sound filled my ears.I tried to slide beneath my desk.The desk did a wild tap dance,slipping and sliding towards the centre of the room.I twisted my body and grabbed at the windowsill behind me,somehow kicking free of my dancing chair.I tried to stand.My legs skated away as if on a bucking escalator.

My fingers shook,grasped and held the windowsill tightly.Somewhere through the roar sounded the terrified scream of some wounded animal.I looked behind me and tried to steady my gaze on the other kids but the scene was a dizzy nightmare.Some of the class were sitting in the middle of the room,surrounded by chairs and desks.One girl was screaming.A boy was trying to claw his way across the floor to the door in a crazy overarm crawl.

My grip froze me to the windowsill.

I cried aloud,“I’m going to die.I’m going to die.Save me,I’m not ready to die,I’m not ready!”

I hunched forward on my knees and pressed my face against my clenched fingers.I looked at the backs of my fingers and stupidly noticed the fragile pale hairs growing out of the pores.The fingers would soon cease to exist.Somehow the impending horror of my death was too terrible to even cry about.

Suddenly,I became aware that the rocking had ceased.Perhaps I wasn’t going to die.

小题1:The roaring sound was made by______.

A.a wounded animal

B.people screaming

C.children running

D.an earthquake小题2:When the narrator clenches his fingers he is ______.

A.afraid

B.angry

C.injured

D.impatient小题3:Paragraph two describes the______.

A.injuries suffered by the narrator

B.effects of a bad nightmare

C.disorder in the classroom

D.narrator’s fear of death小题4:At the end of the passage there is a feeling of______.

A.panic

B.hope

C.sorrow

D.excitement

问答题 简答题