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问题 单项选择题

容易造成义齿弹跳的情况是

A．卡臂尖过长抵住邻牙
B．卡环体与基牙不贴合，支托、卡环在牙面成支点
C．基托边缘伸展过长
D．支托折断，义齿下沉
E．上下颌后牙覆盖过小

答案

参考答案：A

填空题

Here is my idea about how a friend is like. Firstly, 61.______a friend is someone you can share your secrets. If you 62.______tell him a secret, never will he talks about it with anybody 63.______else. Besides, a friend is always good listener when you 64.______need one. After hear your sad stories, he will say some 65.______words that is nice and warm. Still, your happiness makes 66.______him happily, too. What’s more, a good friend is willing to 67.______offer the help to which you need, or can at least give you 68.______some advices. In a word, friends are those you like and 69.______trust, and you will enjoy every minute that you spent with 70.______them.

63().
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单项选择题

麻疹的临床特征，下列叙述错误的是（）

A.发热

B.眼和上呼吸道炎症

C.淋巴结肿大

D.全身斑丘疹

E.脱屑及色素沉着
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