（）明确提出，教师的身份是“和学生一起学习的学习者”。

患者女，15岁，学，生。急起兴奋，行为紊乱2周入院。2周前患感冒，当时体温38℃，3天后体温恢复正常，患者出现兴奋，话多，不停地打电话给许多同学，甚至一些平时不联系的同学，喜欢外跑，见到乞丐就给钱。此患者最可能的诊断是（）

A.分裂样精神病

B.病毒性脑炎所致精神障碍

C.精神分裂症

D.躁狂发作

E.反应性精神病

在图中画出使杠杆OA平衡时最小动力F₁的方向和阻力F₂的力臂l₂。

美国经济学家鲍莫尔的( )，将国民经济区分为两个部分：生产率迅速提高的部门和生产率缓慢提高的部门。

A．政府活动扩张法则

B．公共收入增长引致论

C．经济发展阶段

D．非均衡增长模型

根据美国著名管理学家迈克尔·波特的竞争战略理论，商业银行可以通过（）策略来达到营销目的。

A.产品差异

B.大众营销

C.单一营销

D.分层营销

E.交叉营销

World Water Shortage

A new study warns that about thirty percent of the world’s people may not have enough water by the year 2025.
A private American organization called (1) Action International did the new study. It says (2) than three-hundred-thirty-five-million people (3) enough water now. The people live in twenty-eight (4) . Most of the countries are in Africa or the (5) East.
P-A-I researcher Robert Engelman says (6) the year 2025, about three-thousand-million people (7) lack water. At least 18 more countries are (8) to have severe water problems. The demand (9) water keeps increasing. Yet the amount of water on Earth (10) the same.
Mr. Engelman says the population in countries that lack water is (11) faster than in other parts of the world. He says (12) growth in these countries will continue to (13) .
The report says lack of water in the future may (14) in several problems. It may increase health (15) . Lack of water often means drinking (16) not safe. Mr. Engelman says there are problems (17) over the world because of diseases, such as cholera, (18) are carried in water. Lack of water may also result (19) more international conflict. Countries may have to (20) for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.