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问题 单项选择题

关于椎间盘的描述错误的是

A．由髓核、纤维环和纤维软骨板构成
B．CT可以区分髓核、纤维环
C．MRI可以区分髓核、纤维环
D．X线不能直接显示椎间盘
E．X线平片中椎间盘的位置称为椎间隙

答案

参考答案：B

单项选择题 案例分析题

患者，女，13岁，面中1／3略突，面下1／3高度正常，上颌前牙舌倾，下前牙直立，磨牙轻远中关系，上颌拥挤4mm，下颌拥挤1mm

治疗中不能采用（）.

A.上颌平面导板

B.上颌牙合垫

C.Ⅱ类牵引

D.摇椅弓

E.前牙水平曲
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单项选择题

A Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (71) , and that it has a mechanism for (72) graphical files. Display text, display graphics, and (73) hyperlinks-there’s 99 percent of the (74) value. That’s not to say that the manufacturers didn’t go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client-side Java applets were supposed to become the preferred (75) for application development Remember frames and all their nasty side effects

（75）处填（）。

A．plane

B．plant

C．plate

D．platform
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