过量的锌粉与一定量的稀盐酸反应，为了减慢反应速率，但是又不影响生成的氢气总量，可

新加香薷饮的功用是（）

A．祛暑解表，化湿和中 

B．祛暑解表，清热化湿 

C．清暑解热，化气利湿 

D．清暑化湿，理气和中 

E．祛暑化湿，健脾和中

质谱仪是测量带电粒子的质量和分析同位素的重要工具,如图为质谱仪原理示意图．现利用这种质谱议对氢元素进行测量．氢元素的各种同位素从容器A下方的小孔S无初速度飘入电势差为U的加速电场,加速后垂直进入磁感强度为B的匀强磁场中．氢的三种同位素氕、氘、氚的电量之比为1：1：1，质量之比为1：2：3，它们最后打在照相底片D上，形成a、b、c三条“质谱线”． 关于三种同位素进入磁场时速度的排列顺序和a、b、c三条“质谱线” 的排列顺序，下列判断正确的是           。

A．进入磁场时速度从大到小排列的顺序是氚、氘、氕

B．进入磁场时速度从大到小排列的顺序是氘、氚、氕

C．a、b、c三条质谱线依次排列的顺序是氘、氚、氕

D．a、b、c三条质谱线依次排列的顺序是氚、氘、氕

功率是表示做功______的物理量；某机器的功率是500瓦，其物理意义是______．这样的一台机器每小时可完成______焦的功．

Directions: The following people are expressing their thoughts (1-5) to show their concern for food,

environment and so on. After that are pieces of related information (A-F). Now decide which piece of

information would be most suitable for the thought and idea mentioned in questions 1-5 and mark your

answer letter (A-F) on your answer sheet. There is one extra paragraph which you do not need to use.

______ 1. How I was struck by the clear water and fresh air in my childhood! But everything has changed,

that is, the clear water and fresh air are nowhere to be found again as they were. Above all, a great deal of

waste hardly rots away.

______ 2. More and more people are beginning to have a good knowledge of the importance of a safer and

cleaner environment, which in turn forces the business to be cleaned up.

______ 3. Organic products are getting more and more popular among people, but we should know the fact

that organic products might also have something to do with pesticides (农药).

______ 4. I'm very much fond of growing some vegetables of my own in my small garden, for many

vegetables on sale in markets are actually becoming more and more dangerous as a result of widespread

pesticides.

______ 5. Nowadays it is very convenient for consumers to find and buy green food in supermarkets as they

are clearly marked.

A. "Organic produce is always better," Gold said. "The food is free of pesticides, and you are generally

supporting family farms instead of large farms. And more often than not it is locally grown and seasonal, so

it is more tasty." Gold is one of a growing number of shoppers buying into the organic trend, and supermarkets

across Britain are counting on more like him as they grow their organic food business.

B. Market research shows that Gold and others who buy organic food can generally give clear reasons for

their preferences - but their knowledge of organic food is far from complete. For example, small amounts of

pesticides can be used on organic products. And about three quarters of organic food in Britain is not local

but imported to meet growing demand. "The demand for organic food is increasing by about one third every

year, so it is a very fast-growing market," said Sue Flock, a specialist in this line of business.

C. Many cities around the world today are heavily polluted. Careless methods of production and lack of

consumer demand for environment-friendly products have contributed to the pollution problem. One result is

that millions of tons of glass, paper, plastic, and metal containers are produced, and these are difficult to get

rid of.

D. However, today, more and more consumers are choosing "green" and demanding that the products they

buy should be safe for the environment. Before they buy a product, they ask questions like these:"Will this

shampoo damage the environment?" "Can this metal container be reused or can it only be used once?"

E. Only a few years ago, it was impossible to find green products in supermarkets, but now there are hundreds.

Some supermarket products carry labels (标签) to show that the product is green. Some companies have

made the manufacturing (制造) of clean and safe products their main selling point and emphasize it in their

advertising.

F. The concern for a safer and cleaner environment is making companies rethink how they do business. No

longer will the public accept the old attitude of "Buy it, use it, throw it away, and forget it." The public

pressure is on, and gradually business is cleaning up its act.

为了保证设计的连续性，最好与经过选择的一些（）建立较长期的稳定关系。这样可以使设计师对企业各方面有较深入的了解，使设计更适合企业的生产技术和企业目标，并建立一贯的设计风格。

A.设计经理

B.自由设计师

C.设计小组

D.设计师