阅读理解。
We know good manners are important. Today I am going to tell you something about manners in
different countries. I think you already know that people in different countries usually have different ways
of doing things. Something that is rude in one country may be quite polite in another. For example, in
Britain you mustn't lift your bowl to your mouth when you are having liquid food. That is considered bad
manners in Britain. But in Japan you needn't worry about making a noise when you drink something. It
shows that you are enjoying it. In Britain we try not to put our hands on the table at all during a meal. In
Mexico, however, guests are expected to keep their hands on the table throughout a meal. In Arabic
countries we must be careful with our hands. You see, in Arabic countries you mustn't eat with your left
hand. This is considered to be very impolite. So, what should you do if you visit a foreign country? Well,
you needn't worry. You can ask the native people there to help you and you can just watch carefully and
try to do what they do.
1. In Arabic countries you must be careful with your _____.
A. feet
B. mouth
C . eyes
D. hands
2. In Britain we try not to put our hands _____ during a meal .
A. on the desk
B. in the bed
C. on the table
D. in the pocket
3. Which of the following is true?
A. In different countries, the manners are the same.
B. Different manners in different countries.
C. Good manners are not important.
D. In Arabic countries we mustn't be careful with our hands.
4.What's the meaning of the underlined word "throughout"?
A. 穿过
B. 贯穿
C. 通过
D. 横过
5. The mainly idea of this passage is _____ .
A. Manners
B. Habits
C. Traffic
D. Lights
缺失，临床检查
稳固，牙周情况较好。拟用
面功能最多只能恢复至正常天然牙的（）