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药品是用于疾病的治疗、诊断和预防的，保健品是用来保健和辅助治疗的，两者之间有明显的区别。但是有的产品如维生素、矿物质元素类产品有的是药品，有的却是保健品。应该如何区分呢？第一，药品的生产及其配方的组成，生产能力和技术条件都要经过国家有关部门严格审查并通过药理、病理和毒理的严格检查和多年的临床观察，经过有关部门鉴定批准后，方可投入市场。保健品无须经过医院临床试验便可投入市场。第二，生产过程的质量控制不同。药品必须在制药厂生产，空气的清洁度、无菌标准、原料质量等必须符合质量控制要求，达到GMP标准。第三，药品具有严格的适应证，治疗疾病有一定疗效；而作为食品的保健品，则没有治疗作用，不需要经过临床验证。

撤销批准文号的药品处理方法是（）

A.以劣药论处

B.责令停产、停止销售

C.以假药论处

D.不得继续使用

E.可生产、销售

答案

参考答案：C

选择题

读沿450E经线各地某时刻正午太阳高度和昼长分布图，回答7－8题。

小题1:此时国际标准时间是

A．12时

B．9时

C．8时

D．5时小题2:与上图对应的太阳光照图正确的是（图中阴影部分表示黑夜）
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单项选择题

A weather map is an important tool for geographers. A succession of three of four maps presents a continuous picture of weather changes. Weather forecasts are able to determine the speed of air masses and fronts; to determine whether an individual pressure area is deepening or becoming shallow and whether a front is increasing or decreasing in intensity. They are also able to determine whether an air mass is retaining its original characteristics or taking on those of the surface over which it is moving. Thus, a most significant function of the map is to reveal a synoptic picture of conditions in the atmosphere at a given time.

All students of geography should be able to interpret a weather map accurately. Weather maps contain an enormous amount of information about weather conditions existing at the time of observation over a large geographical area. They reveal in a few minutes what otherwise would take hours to describe. The United States weather Bureau issues information about approaching storms, floods, frosts, droughts, and all climatic conditions in general. Twice a month it issues a 30-day "outlook" which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlooks are based upon an analysis of the upper air levels with often set the stage for the development of air masses, fronts, and storms.

Considerable effort is being exerted today to achieve more accurate weather predictions. With the use of electronic instruments and earth satellites, enormous gains have taken place recently in identifying and tracking storms over regions which have but few meteorological stations. Extensive experiments are also in progress for weather modification studies. But the limitations of weather modification have prevented meteorological results except in the seeding of super-cooled, upslope mountainous winds which have produced additional orographical precipitation on the windward side of mountain ranges. Nevertheless, they have provided a clearer understanding of the fundamentals of weather elements.

At the present time, experiments are being conducted in（）

A. 30-day "outlook"

B. controlling storms

C. satellites

D. manipulating weather
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