咀嚼时前磨牙的主要功能是()。 A.撕裂食物 B.捣碎食物 C.磨细食物 D.切割食

题型:单项选择题

问题:

咀嚼时前磨牙的主要功能是()。

A.撕裂食物

B.捣碎食物

C.磨细食物

D.切割食物

E.固定食物

考点:山东住院医师口腔颌面外科Ⅱ阶段专业理论专业理论题库
题型:单项选择题
阅读理解。
Li Jun
China
I dislike rain. It seems that even though you have an umbrella, you can’t protect yourself from the rain. Whenever it rains, I’ll get wet so I have to go back home to change my clothes. It is just uncomfortable.
Kate
Ukraine
I love spring. In spring, it starts to get warm. I enjoy going outside without a coat. And it never gets too hot in spring. I dislike the hot summer because we can’t find a place to get away from the hot sun at all.
Lucy
America
I like rainy days. When it is raining, I can read my favorite book in a warm bed. I also like listening to the sound of rain. It makes me relaxed.
Simon
Russia
My favorite season is summer. There are two reasons why I like it. First, I was born in summer, Second, it’s hot in summer, and I like to swim in the sea and sunbathe on the beach.
1. ___________ doesn’t like the rainy weather.      
A. Kate        
B. Lucy          
C. Li Jun          
D. Simon
2. The child from __________enjoys the rain sound and __________ likes hot days best.      
A. Ukraine, Li Jun  
B. China, Lucy  
C. America, Simon  
D. Russia, Kate
3. The  underlined word “sunbathe” means "__________" in Chinese.     
A. 游泳      
B.晒太阳        
C.打排球        
D.洗淋浴
4. Which of the following is WRONG?     
A. Li Jun thinks hot days make him uncomfortable.
B. Kate enjoys going outside without a coat in warm weather.
C. Lucy likes reading in a warm bed on a rainy day.
D. Simon likes to swim in the sea and sunbathe on the beach on hot days.
5. The form wants to tell us ___________.    
A. children all over the world like rainy days
B. different children like different kinds of weather
C. different children have different ways to study
D. what children usually do in different kinds of weather
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立磨磨辊磨损量过大的原因?

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下列哪项不是异位妊娠的诊断要点:()

A.有停经史

B.高热

C. * * 出血

D.腹痛

E.尿妊娠试验阳性

题型:单项选择题

ZY7-J170/4000直流电液转辙机动作时间不大于()。

A、3.8s

B、5.5s

C、8.5s

D、9s

题型:单项选择题

下列关于栈的描述中错误的是______。

A.栈是先进后出的线性表

B.栈只能顺序存储

C.栈具有记忆作用

D.对栈的插入与删除操作中,不需要改变栈底指针

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