质量检验用基准物质用于化学药物测定的基准物质(按干燥品计) A．标准品 B．对照品

男性，35岁，劳力性呼吸困难，心悸，气短，少尿，下肢浮肿1年余，1周前咽痛、咳嗽、咳黄痰后呼吸困难加重，夜间不能平卧。超声心动图示，左右心室扩张，弥漫性运动不良，左心室射血分数30%。既往无任何特殊病史。

导致近期病情加重的原因是（）

A.感染

B.过劳

C.电解质紊乱

D.心肌炎症

E.洋地黄中毒

某水电站装有4台机组主变压器，采用发电机一变压器之间单元接线，发电机额定电压为15.75kV，1号和3号发电机端装有厂用电源分支引线，无直馈线路，主变压器高压侧所连接的220kV屋外配电装置是双母线带旁路接线，电站出线四回，电站属于停机频繁的调峰水电站。

若水电站每台发电机端均装的避雷器，1号和3号厂用电源分支采用带金属外皮的电缆段引接，电缆段长40m，请说明主变压器低压侧避雷器应按下列哪项配置？（）

A.需装设避雷器

B.需装设2组避雷器

C.需装设1组避雷器

D.无需装设避雷器

阅读理解。

     Across the world, 1.1 billion people have no access to clean drinking water. More than 2.5 billion people

lack basic sanitation.

     The combination proves deadly. Each year, diseases related to inadequate water and sanitation kill between

2 and 5 million people and cause an estimated 80 percent of all sicknesses in the developing world. Safe

drinking water is a precondition for health and the fight against child death rate, inequality between men and

women, and poverty.

     Consider these facts:

     The average distance that women in Africa and Asia walk to collect water is 6 kilometers.

     Only 58 percent of children in sub-Saharan Africa are drinking safe water, and only 37 percent of children

in South Asia have access to even a basic toilet.

     Each year in India alone, 73 million working days are lost to water-borne diseases.

     Here are three ways you can help:

     (1) Write Congress

     Current U. S. foreign aid for drinking water and sanitation budgets only one dollar per year per American

citizen. Few members of Congress have ever received a letter from voters about clean drinking water abroad.

     (2) Sponsor a project with a faith-based organization

     Many U.S. religious groups already sponsor water and sanitation projects, working with partner organizations

abroad. Simply putting a single project by a U.S. organization can make safe water a reality for thousands of

people.

     (3) Support nonprofit water organizations

     Numerous U.S.-based nonprofits work skillfully abroad in community-led projects related to drinking water

and sanitation. Like the sample of non-profits noted as follows, some organizations are large, other small-scale,

some operate worldwide, others are devoted to certain areas in Africa, Asia, or Latin America. Support them

generously.

1. The three facts presented in the passage are used to illustrate that ____.

A. poverty can result in water-borne diseases

B. people have no access to clean drinking water

C. women's rights are denied in some developing countries

D. safe drinking water should be a primary concern

2. The intended readers of the passage are ____.

A. Americans

B. overseas sponsors

C. congressmen

D. U.S.-based water organizations

3. The main purpose of the passage is to call on people to ____.

A. get rid of water-related diseases in developing countries

B. donate money to people short of water through religious groups

C. fight against the worldwide water shortage and sanitation problem

D. take joint action in support of some non-profit water organizations

4. What information will probably be provided following the last paragraph?

A. A variety of companies and their worldwide operation.

B. A list of non-profit water organizations to make contact with.

C. Some ways to get financial aids from U.S. Congress.

D. A few water resources exploited by some world-famous organizations.

下列选项中属于锅炉启动步骤的是（）。

A.检查准备

B.上水

C.控制升温压速度

D.烘炉

E.暖管与并汽

咨询工程师在工程项目合同管理中的作用有__________。

A．协助业主设计合同体系方案

B．协助业主与承包商进行合同谈判

C．协助业主签订合同

D．代表业主签订合同

E．监督、管理合同的履行