男,无牙颌患者。全口义齿戴用一周。主诉黏膜压痛且位置不确定,咀嚼时义齿易脱位。检查发

题型:单项选择题

问题:

男,无牙颌患者。全口义齿戴用一周。主诉黏膜压痛且位置不确定,咀嚼时义齿易脱位。检查发现,面部形态自然,义齿固位良好,基托边缘伸展适度,但咬合时下颌义齿轻度移位。其原因是

A.初戴不适应
B.基托变形
C.基托翘动
D.咬合干扰
E.垂直距离过高

考点:口腔执业医师口腔执业医师
题型:单项选择题

阅读理解。

     A meteorite(陨石) almost hit an 80-year-old man named Arthur Pettifer in Britain when

he was working in his garden. The meteorite was the biggest in the past 26 years in Britain.

     The meteorite weighed(重量) one kilo, and might be over four thousand million years old.

     "I hear the big noise in the air. I looked up and saw the tops of the trees coming and going,"

he said, "I didn't know what it was."

      Meteorites are small things from the small planets in space. About 3,500 meteorites may fall

on earth every year, but only very few are found. Mr. Pettifer's meteorite is the fifth to fall in Britain

since the Second World War.

     Mr. Pettifer is glad. "When you think about it coming from so far away, it really is something

strange."

1.The meteorite was ____ Mr. Pettifer when it fell down.

A. close to  

B. far from  

C. hitting    

D. go up

2.The meteorite was already _____ years old.

A.40,000,000,000  

B.40,000,000

C.400,000,000

D.4,000,000,000

3.Mr. Pettifer found the tops of the trees coming and going because______.

A. the trees were afraid  

B. the fast falling meteorite kept the tree tops moving

C. it was going to rain  

D. the moving was made by wind

4._____ people see a meteorite fall although they visit the earth often each year.

A. Quite a few  

B. Some    

C. Few    

D. Many

5.Mr. Pettifer was _____ to see the falling of the meteorite.

A. happy  

B. afraid    

C. sorry    

D. angry

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A、-200~0

B、-200~0

C、0~500

D、0~1600

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在Linux系统smb.conf文件中,max disk size=0语句的作用是 (39)

A.对磁盘空间的大小没有限制

B.启用对磁盘空间的大小的限制功能

C.把磁盘空间的大小设为最小

D.该配置语句是错误的,磁盘空间的大小不能为0

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A.发出商品日期

B.受托方发出商品日期

C.收到代销单位的代销清单日期

D.全部收到款项

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