龋病流行特征不包括A.地区分布 B.时间分布 C.人群分布 D.氟化物分布 E.城乡

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问题:

龋病流行特征不包括

A.地区分布

B.时间分布

C.人群分布

D.氟化物分布

E.城乡分布

考点:口腔执业助理医师口腔执业助理医师52
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违反规章制度受处分的条件?

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治疗外感表证兼有食积者,宜选用的药物是()

A.神曲

B.麦芽

C.青皮

D.莪术

E.山楂

题型:单项选择题

For many young people, the dream of a lifetime is to travel the world, explore different cultures and landscapes, taste new foods and flavors, and listen to the distinctive sounds of international music and languages.

Unfortunately, few young people have the money or freedom to make this dream come true. But if you can't go out into the world, surely second best is to let the world come to you. And, this year's Shanghai World Expo is exactly where that's happening.

From May 1 to October 31, there will be 194 countries and 50 international organizations on display at the 5-square-km Expo site. Seventy million domestic and international visitors are expected to visit it by the end of October. So, if you can go, you'll be surrounded by people with a wide range of backgrounds, nations, and cultures.

The Expo's theme is "Better City, Better Life". The United Nations estimates that, this year, 55 of the world's people will live in urban settings. This poses a dilemma (困境) for the world's cities: How can they accommodate such a large number of people in a sustainable (可持续的) way? Can they remain places of natural beauty and cultural importance?

Well, that's the challenge the 2010 Expo participants are confronting in a variety of ways. Japan will show off an "eco-breathing" structure to power its building with natural energy like sunlight, rainwater and wind. Germany's pavilion is named "Balancity", which is described as a "balance between innovation (创新) and nature, society and its individuals, work and recreation" (娱乐)

The first themed Expo was held in 1933, and since that time World Expos have featured a participatory and interactive style. The Shanghai Expo is no exception. Young people will have the opportunity to take part in forums to discuss themes like new technology, green energy and conservation.

A trip to the Expo is guaranteed to be much less expensive than a trip around the world. Still, the costs can add up. However, young people can save money by purchasing group or student tickets, which may be available at reduced rates. Many of the participating pavilions offer free samples and treats for the visitors. In addition to handing out free chocolates, the Belgian pavilion will give away a free diamond each week to a visitor who can answer questions related to Belgium.

If you're planning to head to the Shanghai Expo between May and October, don't forget to bring a camera, a notebook, and an open mind (and comfortable shoes). For nearly six months, representatives of the world are coming together to share their best and latest ideas for the future. It's sure to be a memorable experience.

From: http://www.hxen.com/englisharticle./yingyuyuedu/2010-02-09/101092.html

1. Which statement is true according to the passage?

A. You can pay a visit to the Shanghai World Expo at the beginning of this November

B. You can save money by buying student tickets.

C. Whoever comes to the Belgian pavilion will be given a free diamond.

D. How to protest the animals is the theme of the Shanghai World EXPO

2. What dilemma do you think the cities are confronting (面对) now according to the fourth paragraph?

A. How to avoid traffic jams                     B. How to reduce air pollution

C. How to live peacefully with animals          D. How to live harmoniously with nature

3. What's the purpose of the writing the passage?

A. To introduce how to get to the Shanghai World Expo

B. To recommend what to see in the Shanghai World Expo

C. To tell us some information about the Shanghai world Expo.

D. To tell us the history about the World Expo.

4. Where do you think you will probably read this article?

A. In a newspaper      B. On a website         C. In a magazine      D. In a textbook

题型:单项选择题

下面对专用凭证的使用叙述正确的是()。

A.仅在本单位外部使用

B.仅在本单位内部使用

C.在单位内、外部使用

D.具有统一格式和使用方法

题型:单项选择题

精子发生是指()

A.精子细胞变态形成精子的过程

B.精原细胞形成精子的过程

C.初级精母细胞至精子形成的过程

D.生精细胞的两次成熟分裂过程

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