患者,女,17岁,颏部外形发育不良,口唇闭合时口腔周围肌肉呈现紧张,面下1/3高度偏

题型:单项选择题 A3/A4型题

问题:

患者,女,17岁,颏部外形发育不良,口唇闭合时口腔周围肌肉呈现紧张,面下1/3高度偏大,开5mm,覆盖8mm,磨牙呈现完全的的Ⅱ类咬合关系,上下颌前牙拥挤明显,前牙开唇侧扭转,完全舌侧错位,低位唇向错位,ANB7°,四个第三磨牙牙胚存在,位置正常。

本患者治疗初期,要使用下列哪种方法推远中移动()

A.垂直开大曲

B.扩大螺旋簧

C.链状橡皮链

D.口外力牵引装置

E.Ⅲ类颌间牵引

考点:口腔医学主治医师口腔正畸学口腔正畸学题库
题型:单项选择题 A3/A4型题
阅读短文,根据短文内容,从短文后的五个选项中,选出能填入空白处的最佳选项。选项中有一项为多余选项。
     Do you have enongh time to do all the things you have to do and want to do? 1.              ?
     A Monthly Calendar is a great way to remember important dates. By seeing a whole month at once,
you can get a good sense(感觉)of what's coming up.
     2.               
    First, make one for your wall or desk, with really big daily squares(正方形)where you can write
important dates, Get in the habit of writing every important event, from school project dates to meetings
and sports games. 3.             . so they'll catch your eyes. Try using colored markers, or magazine photos
to make the calendar areas pop out(突出).
     Then mark"warming (警告) dates"for really important events. For example, if you have a big science
project due(到期)on a certain day , don't just mark that day. Count back a week, and then mark that
calendar square with "One week until science project due!" This can he especially helpful. If you make
some warning squares. 4.             .
 
   A. things won't be forgotten
   B. Make important dates as clear as possible
   C. Here's how to make a Monthly Calendar
   D. we all have a Monthly Calendar
   E. How could you manage your time better
题型:单项选择题 A3/A4型题

在平行四边形ABCD中,∠A:∠B:∠C:∠D的可能情况是(  )

A.2:7:2:7

B.2:2:7:7

C.2:7:7:2

D.2:3:4:5

题型:单项选择题 A3/A4型题

请给出以下APZ21240/50备份流程的正确顺序()①CP-SB边接收Backupcopy②自动备份功能可以被激活③Backupcopy传送到APG40中④系统备份将拷贝到内存的备份区域⑤SB边进行RELOAD,DS,RSandPS数据得到更新⑥人工指令进行系统备份或自动备份开始⑦Backupcopy传送到SB边

题型:单项选择题 A3/A4型题

幼儿期保健的重点是()。

A.保暖及预防感染

B.定期进行家访

C.预防意外发生

D.预防近视发生

E.培养良好品德

题型:单项选择题 A3/A4型题

四环素类抗药作用的机制是

A.抑制细菌30s亚基核糖体,抑制细菌生长

B.抑制细菌70s亚基核糖体

C.抑制细菌脱氧核糖核酸回旋酶,阻断脱氧核糖核酸复制,起杀菌作用

D.抑制细菌细胞壁的合成

E.改变胞浆膜的通透性

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