治疗甲状腺危象宜选用( )A．大剂量碘剂与硫脲类合用 B．大剂量碘剂单用 C．硫脲

下列关于神经递质鉴定标准的叙述，正确的是

A．突触前神经元有合成递质的原料和能力
B．兴奋传来时递质经轴浆运输至末梢释放
C．递质与后膜受体特异结合后产生生理效应
D．递质产生生理效应后很快失活或被清除

一个圆柱与一个圆锥的底面积相等，圆柱的高是圆锥高的2倍，这个圆锥的体积是圆柱体积的（    ）。

阅读理解。

     This booklet is designed to help you and your family plan for and survive a major earthquake. By

taking action to be prepared, you can lessen the impact of an earthquake on your family. Set aside

some emergency supplies, and teach your family what to do at home during and after a disaster. You

could be without help for up to 72 hours, so learn to cope for at least that long.

    Movement of the ground is seldom the actual cause of death or injury. Most casualties (意外) result

from partial building collapse and falling objects and debris, like toppling chimneys, falling bricks, ceiling

plaster, and light fixtures. Many of these conditions are easily preventable.

    Because earthquakes occur without warning, it's important to take steps now to prepare, so that you

know what you can do and how to respond-constructive, protective action is possible.

    Have on hand for Any Emergency- Ideas for Home, Workplace, and Car.

    Because you don't know where you will be when an earthquake occurs, prepare disaster supplies.

1. Who is the passage mainly written for? 

A. scientists      

B. parents      

C. the public      

D. teachers

2. How can we lessen the impact of an earthquake on our family?   

A. Stay at home.

B. Keep away from high buildings.

C. Learn some knowledge about the cause of earthquakes.

D. Know what to do in a disaster.

3. Which can be the best title of this passage? 

A. Are You Prepared for the Next Earthquake?

B. Earthquakes Occur Without Warning

C. How to Prevent Earthquakes

D. Cause of Earthquakes

中国植被和土壤的分布规律。

完善社会主义市场经济体制的基本要求是( )。

A．推行公有制的多种有效实现形式，大力发展和积极引导非公有制经济，建立健全现代产权制度

B．建立健全私有资产管理和监督体制，完善公司法人治理结构

C．完善农村土地制度，健全农村社会化服务，深化农村税费改革，改善农村富余劳动力转移就业的环境

D．加快建设全国统一市场，大力发展资本和其他要素市场，建立健全社会信用体系

E．完善国家宏观调控体系，转变政府经济管理职能，深化投资体制改革