中继站设备采用（）和蓄电池浮充方式供电。

下列关于施工总承包管理模式的特点说法正确的是( )。

A．发包人可以通过招标选择最好的施工单位承包，获得最低的报价，对工程造价有利

B．对施工总承包管理单位的招标不依赖于施工图设计，对分包单位的招标也不依赖于施工图和缩短的建设周期

C．对分包单位来说，符合质量控制上的“自我控制”原则

D．业主方的招标及合同管理工作量较小，对业主有利

E．与分包单位的合同一般由业主签订，一定程度上削弱了施工总承包管理单位对分包单位管理的力度

阅读理解。

     Pregnancy(妊娠) and childbirth kill more than 536,000 women a year. More than half of the cases

happened in Africa, according to the World Health Organization. In fact, most of the deaths are

preventable with basic medical care.

    The five leading causes are bleeding, infection, high blood pressure, longtime labor and bad

abortions (流产). Mothers' deaths from such causes were largely reduced nearly a century ago in

developed countries.

    Experts say that what kill many women are "the three delays",   the woman's delay in deciding to go

to the hospital, the time she loses traveling there and the hospital's delay in starting treatment. Only

about 15 percent of births have dangerous complications(并发症).

    Women lack education and information about birth control. Husbands and inlaws may decide where

a woman gives birth and insist that she stay at home to save money. However, there is no single solution

to a problem with so many factors shortages of doctors, nurses, drugs, equipment, roads and

transportation-though hospital officials are trying many things now.

    One stopgap measure to solve the problem for the present has been to train assistant medical officers,

to perform certain operations. Some African countries are now struggling to train more assistants and

midwives(接生婆), and provide places for pregnant women to stay near hospitals.

    But there is a long way to go. Only 20 percent of women in the continent give birth at the hospital.

More than 50 percent stay at home to give birth, and the rest go to local clinics that cannot handle

emergencies.

1. Which is not included in the five leading causes of women's     deaths during pregnancy and childbirth? 

A. Infection.

B. High blood pressure.

C. Traveling long distances.

D. Bleeding.

2. The underlined word "stopgap" probably means "________" in     the passage.

A. final      

B. temporary

C. effective    

D. instant

3. What can we learn from this passage?

A. Most problems that cause women's deaths during pregnancy and childbirth can be

     treated or prevented.

B. Developed countries should help African countries reduce mothers' deaths.

C. The husbands in poor countries should take responsibility for their wives' deaths.

D. The governments of African countries have to take more effective measures to save pregnant women.

4. What is the author's attitude towards the future of preventing women's deaths during pregnancy

     and childbirth? 

A. Positive.                

B. Negative.

C. Objective.                

D. Subjective.

命令DISPLAYFOR性别="男"，在数据库关系运算中对应（）

A、选择运算

B、投影运算

C、连接运算

D、过滤运算

1939年，前苏联教育理论家赞科夫主编了当时被认为是具有权威性的马克思主义的《教育学》。

当制动、转向或擦撞引起车辆侧滑时，应立即（），并迅速向侧滑的一方转动转向盘，并及时回转方向进行调整。

A、采取紧急制动

B、松抬制动踏板

C、连续踏制动踏板