问题 单项选择题 A1型题

根管治疗过程中控制和消除感染的原则,除外的是()

A.将残存的感染封闭并使之无害化

B.抑制机体自身免疫抗炎能力

C.不使感染扩散

D.不增加新的感染

E.尽可能消除感染

答案

参考答案:B

解析:根管治疗过程中控制和消除感染的原则是:不使感染扩散,不增加新的感染,尽可能清除感染,将残存的感染封闭并使之无害化。所有医疗干预性措施最终的目的是帮助机体的修复而不可能取而代之,在施加控制感染措施的同时,要特别考虑机体的反应,考虑机体自身的免疫抗炎能力和修复再生能力。

完形填空
完形填空。
     Jenna,a popular girl from Westwood Middle School,had graduated first in her class andwas
ready for new    1__ in high school.
     __2__   ,high school was different. In the first week,Jenna went to tryouts(选拔赛) for
cheerleaders(拉拉队队长). She was competing against
very talented girls, and sheknew it would be    3_    for her to be selected. Two hours later,
the   _4  _  read a list of the girls for a second try-out. Her heart__5__as the list ended without
her name. Feeling__6__ ,she walked home carrying her schoolbag full of homework.
          Arriving home, she started with math. She had always been a good math student, but now
she was__7__. She moved on to English and history, and was__8__ to find that she didn't have
any trouble with those subjects. Feeling better, she decided not to__9__math for the time being.
        The next day Jenna went to see Mrs. Biden  about being on the school__10__. Mrs. Biden
wasn't as__11__as  Jenna. "I'm sorry, but we have  enough__12__for the
newspaper already. Come back next year and  we'll talk then. "Jenna smiled__13__and  left.
"Why is high school  so__14__?" she  sighed.
         Later in   15   class, Jenna devoted herself to figu-ring out the problems   that  had given her
so much   16   . By the end of class, she understood how to get them right. As she gathered her
books, Jenna decided     she'd  continue to try to   17   at her new school. She wasn't   sure  if
she 'd  succeed .but she knew she had    to   18  . High school was just as    her mom had said :
"You will feel  like a small fish in a big  pond    19    a big fish in a small pond . The  challenge  
is to become the_20__fish you can be. "
( )1.A.processes
( )2.A.Therefor
( )3.A.difficult
( )4.A.editor
( )5.A.jumped
( )6.A.strange
( )7.A.struggling
( )8.A.ashamed
( )9.A.putup
( )10.A.committee
( )11.A.enthusiastic
( )12.A.speakers
( )13.A.widely
( )14.A.similar
( )15.A.physics
( )16.A.pleasure
( )17.A.fitin
( )18.A.swim
( )19.A.inreturnfor
( )20.A.slimmest
B.decisio
B.However
B.boss
B.sank
B.happy
B.improving
B.Disappointed
B.preparefor
B.newspaper
B.artistic
B.readers
B.weakly
B.ordinary
B.history
B.hope
B.lookout
B.try
B.incaseof
B.smallest
C.challenges
C.Otherwise
C.candidate
C.stopped
C.awful
C.working
C.shocked
C.worryabout
C.radio
C.sympathetic
C.cheerleaders
C.excitedly
C.different
C.English
C.trouble
C.stayup
C.ask
C.intermsof
C.best
D.exercises
D.Besides
D.judge
D.raced
D.lonely
D.complaining
D.relieved
D.giveup
D.team
D.realistic
D.writers
D.brightly
D.familiar
D.math
D.sorrow
D.getaround
D.escape
D.insteadof
D.gentlest
填空题