女.28岁,邻嵌体戴入3个月后,出现冷热刺激痛,最有可能出现的原因是() A.嵌体咬

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问题:

女.28岁,邻嵌体戴入3个月后,出现冷热刺激痛,最有可能出现的原因是()

A.嵌体咬合过高

B.急性牙髓炎

C.继发龋

D.急性根尖周炎

E.急性牙周炎

考点:广东住院医师口腔医学口腔修复学口腔修复学题库
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混凝土材料质量控制项目有()。

A.水泥

B.细集料

C.粗集料

D.外加剂

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用显微镜观察洋葱表皮细胞装片时,在低倍镜下找到细胞后,换上高倍镜观察时的变化是(  )

A.视野小了,亮度小了,物像大了

B.视野小了,亮度大了,物像大了

C.视野大了,亮度大了,物像小了

D.视野大了,亮度大了,物像大了

题型:单项选择题

Chinese and Western eating habits are different. In China, the dishes are placed on the table and everybody shares. It is always polite to let guests or elderly people at the table taste every dish first. But in the West, everyone has his or her own plate of food.

Although there are no strict rules on how to set chopsticks and spoons, there are some things you should never do during a Chinese banquet (筵席).

 Firstly and most importantly, don’t put your chopsticks upright in the rice bowl. Instead, lay them on your dish. The reason for this is that when people die, family members give them a bowl full of rice with a pair of chopsticks sticking out upright in it. So if you stick your chopsticks in the rice bowl, it appears that you want someone at the table to die.

Make sure the spout(容器嘴) of the teapot is not facing anyone, as this is impolite. The spout should always be directed to where nobody is sitting, usually just outward from the table.

Don’t tap on your bowl with your chopsticks. Beggars tap on their bowls, so this is not polite. Also, when the food is coming too slow in a restaurant, you should not tap on your bowl. If you are in someone’s home, it is like insulting the cook.

小题1:What is the difference between Chinese and Western eating habits according to Paragraph 1?

A.In China people are very polite, while in the West people are not so.

B.In China people share the dishes, while in the West people eat separately.

C.In China people use the chopsticks, while in the West people use the knife and fork.

D.None of the above.小题2:What is the main idea of the third paragraph?

A.The reason why chopsticks shouldn’t be put upright in the rice bowl.

B.The Chinese use chopsticks to eat.

C.The Chinese eating habits.

D.How to use chopsticks.小题3:Which of the following statements is TRUE according to the passage?

A.It is polite to taste the dishes before the guests or the elderly.

B.You can put your chopsticks wherever you want.

C.Never tap on your bowls with the chopsticks during the meal.

D.Teenagers can stick their chopsticks in the rice bowl.小题4:The underlined word “insulting” in the last paragraph probably means “_________”.

A.playing jokes on

B.laughing at

C.treating badly

D.looking down upon

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植树造林可以防风固沙、增加降水量、改善温室效应、美化环境,这说明(   )。

A.环境影响生物

B.生物影响环境

C.生物适应环境

D.生物能进行合作

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研究生()转导师、转专业、转学。

A.一般不得

B.禁止

C.以上都不对

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