可以用图像来表示物体的运动状态,如图所示,表示物体运动速度相同的是: A.甲乙

题型:选择题

问题:

可以用图像来表示物体的运动状态,如图所示,表示物体运动速度相同的是:

A.甲乙

B.甲丙

C.乙丙

D.乙丁

考点:比较快慢的方法
题型:选择题

已知直线l:y=x-2,且有两点A(0,-2),B(2,0),设点P为l上一点,试判断过 P、A、B三点能否作个圆,试说明理由。

题型:选择题

在价值工程的工作过程中,制定改进方案之前,首先要进行()。

A.详细评价

B.概略评价

C.功能评价

D.功能定义

题型:选择题

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.

题型:选择题

有消毒、止痒、收敛作用的是()。

A.4%硼酸酒精滴耳剂

B.3%~5%碳酸氢钠滴耳剂

C.3%双氧水滴耳剂

D.氧氟沙星滴耳剂

E.2%~5%酚甘油滴耳剂

题型:选择题

湖南环保工业园位于长沙哪一个区?

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