浮动汇率制

患者男性，56岁，肝炎后肝硬化病史9年，5h前无明显诱因突然出现呕吐新鲜血，并排柏油样便，共约1500ml。半小时出现意识障碍，躁动不安，尿少。查体：血压98/50mmHg，脉搏110/min，血常规血红蛋白 60g/L，血清白蛋白28g/L，血氨135μmol/L，血钾5.3 mmol/L，血钠126mmol/L，血氯98mmol/L。

治疗过程中需检测下列哪些指标可有助于判断出血是否已停止

A．尿素氮

B．血细胞比容

C．红细胞沉降率

D．网织红细胞计数

E．血红蛋白测定

）亚洲东北面隔白令海峡相望的大洲是        。

A．南极洲

B．大洋洲

C．北美洲

D．南美洲

汞中毒时应使用的解毒药是

A．小剂量亚甲蓝(美蓝)
B．大剂量亚甲蓝(美蓝)
C．依地酸二钠钙
D．二硫基丙醇
E．亚硝酸盐一硫代硫酸钠

阅读理解

     For the people living in the Nile Basin, the river is their life.This 6,825 km waterway, whose

watershed (流域) covers three million square kilometers, flows through mountains, woodlands,

lakes and deserts.Its potential for fishing, tourism and shipping is great-but so are its challenges.

     Water shortage, already serious in Egypt and Sudan, will soon influence several other countries

in the watershed as well.Today, about 160 million people depend on the Nile River for their living.

Within the next 25 years, the district's population is expected to double, adding to the demand

brought about by growth in industry and agriculture.The frequent drought (干旱) adds to the

urgency.

     Water quality is also a problem.Precious soil is washed out to sea.Wastes from industry and

agriculture create pollution.Higher concentrations of salt influence irrigated soils.Waterborne

diseases continue unchecked.In areas where it's hot and damp, water hyacinths choke off lakes,

dams and other sections of the river, making it difficult for fishing and other businesses to move

forward.

     Native people along the narrow area of farmland have watched the sand move closer day by

day.They've seen the river change course, and their only source (来源) of water thickened with

mud.They're very poor and have few choices.

     But a new program, the Nile Basin Initiative (NBI), is offering very practical assistance.The

program is more than just a watermanagement project.It's a plan for the social and economic

development of a vast district: it concentrates on the needs of the poorest of the poor and the

environment that supports them.

     These are whole ecosystem problems, calling for united solutions (解决办法). Half the Nile

Basin's countries are among the world's poorest nations; yet, somehow, they must find the resources,

skills and political will to overcome these challenges.

1. What are the great challenges the Nile Basin faces?

A. The development of shipping industry.

B. Overfishing of native people.

C. Water shortage and water quality.

D. Increasing population and tourism.

2. The underlined word "hyacinths" ( in Paragraph 3 ) refers to"________".

A. animals  

B. plants  

C. rocks  

D. salts

3. The program NBI is mainly aimed at ________.

A. preventing water pollution

B. changing the river course

C. improving living conditions of the poor

D. preventing land from becoming desert

4. What would be the best title of this passage?

A. People's Life in Egypt and Sudan

B. Frequent Drought in Egypt and Sudan

C. The Poorest Countries in the Nile Basin

D. The Ecosystem Problems in the Nile Basin

男性，31岁，B超可见肾上盏结石0.6cm，经解痉、中西药治疗和大量饮水现出现尿频、尿急、尿痛，现结石的位置应在（）

A.输尿管中段

B.肾盂

C.膀胱

D.输尿管膀胱入口段

E. * *