胃痰热内盛常见（） A.心烦不寐，触事易惊 B.面色少华，肢倦神疲而不寐 C.心烦心

2002年5月10日，我国首枚个性化专用邮票（）在全国邮政网点发行。

A、《鲜花》

B、《同心结》

C、《如意》

D、《长城》

About 97% of the world’s water is salty and is found in our oceans and seas. But, as we can’t drink sea water, how can it be important?

Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important sea water is!

Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.

The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn’t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.

Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important sea water is! 

46. Which of the following is the proper order of the food chain?

A. small animals→algae→microscopic animals→large animals→man

B. algae→microscopic animals→large animals→larger animals→man

C. small animals→algae→large animals→microscopic animals→man

D. microscopic animals→algae→large animals →larger animals→man

47. People used to think that the rubbish thrown into the sea ________.

A. wouldn’t harm the fish in the sea   B. would change the balance of the food chain

C. would be broken down in the sea   D. wouldn’t do much harm to the sea

48. From the passage, we learn that _________. 

A. most fish and sea animals live at the surface of the seas

B. it is very difficult to break the balance of a food chain

C. excessive fishing has caused the decrease in fish stock

D. it won’t be long before the problems concerning oceans will be solved

49. Which of the following is NOT a way being used to protect oceans?

A. The use of international agreements.   

B. Forbidding fishing to protect fish stocks.

C. The use of new techniques.          

D. Raising people’s awareness of the need to protect oceans.

50. What would be the best title of the passage?

A. The importance of seawater.

B. Life in the oceans.

C. How to protect food chains.

D. How to deal with seawater pollution.

胡 * * * * 曾指出，新疆要紧紧抓住机遇，坚持一手抓改革发展一手抓团结稳定。新疆要“抓团结稳定”的原因是[ ]

①民族的团结、民族的凝聚力是衡量一个国家综合国力的重要标志之一

②民族团结是实现各民族共同繁荣的政治基础

③加强民族团结、维护国家统一，是中 * * 的最高利益

④民族的团结、民族的凝聚力是社会稳定的前提，是经济发展和社会进步的保证

A、①②③

B、①③④

C、②③④

D、①②④

在比较短的水平距离内，将散装固体物料提升到较高的位置，通常采用（）。

A．带式输送机

B．螺旋输送机

C．振动输送机

D．提升输送机

最容易导致感染的流产为

A．难免流产

B．稽留流产

C．习惯性流产

D．不全流产

E．完全流产