临床上哪项是衡量一个牙是否为良好基牙的重要指标()A.牙根分叉度 B.牙根长度 C.

题型:单项选择题

问题:

临床上哪项是衡量一个牙是否为良好基牙的重要指标()

A.牙根分叉度

B.牙根长度

C.牙周膜面积

D.牙根数目

E.牙槽骨的密度

考点:口腔修复(医学高级)固定义齿固定义齿题库
题型:单项选择题

阅读理解。

    Expo 2010 is held in Shanghai from May 1 to October 31. People all over the world are looking forward

to it. Here are several golden rules on how to best plan your trip.

Rule 1: Do your homework

    Read everything you call before going. Really study the maps. Know the pavilions. Arrive at the entrance

nearest Io the things you want to see. Have a plan. It will make a big difference.

Rule 2: Allow plenty of time

    Expo 2010 is the largest attraction event in the history of the world. It will take many days to see it. Plan

to spend from five to eight days or more seeing it.

Rule 3: Pace yourself

    Expo is enormous. The distances are punishing. It is better to spend a day seeing a single area than to man

hack and forth all over the site. Remember to wear the most comfortable shoes. Never mind what they look

like.

Rule 4: Get going in May

    At many Expos the crowds are smaller in May and in early June than any other time. And beware the last

two weeks. During every Expo, people delay their visits and then in early October they suddenly realize. "Expo

will close soon! I haven't seen it!" As a result, the last several weeks usually have the most crowded days of

the entire Expo.

Rule 5: Find out what everyone else is doing-and do the opposite

    If you don't like large crowds and long lines. Do the opposite. Here is all example:Most people go on

Saturdays or on holidays, So avoid Saturdays and holidays. Go on weekdays when most people are at work.

Rule 6:Turn up

    Expo 2010 is the largest celebration in China's history-an amazing once-in-a-lifetime event. When it is gone

and it will never be seen again. So whatever you do, don't miss it!

1. Expo 2010 will last _____. [ ]

A. five to eight days

B. several weeks

C. six months

D. a year

2. According to Rule 4, you'd bettor not go to Expo on _____. [ ]

A. May 3

B. July 5

C. September 16

D. October 20

3. When there are lots of people waiting in line to see the most popular activations, what's your best choice? [ ]

A. I'll wait in line as other people do.

B. I'll go back and return tomorrow.

C. I'll visit the less crowded places instead.

D. I'll sit on a bench to have a rest for about two or three hours.

4. In Rule 6 "turn up" here means _____. [ ]

A. don't miss it

B. come and see

C. make the sound louder

D. never be seen again

题型:单项选择题

不公正的待遇会对自己的发展产生阻碍。 [ ]

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按正常程序开门入房服务,发现客人刚好从床上起来,怎么办?

题型:单项选择题

液化气铁路槽车进站()作为贮罐或灌装罐使用。

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某学校的研究性学习小组以“研究××遗传病的遗传方式”为课题进行调查研究,最好选择调查何种遗传病以及采用的方法是()

A.白化病;在周围熟悉的4~10个家系调查

B.苯丙酮尿症;在患者家系中调查

C.红绿色盲;在学校内随机抽样调查

D.原发性高血压;在患者家系中调查

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