简述社区护理的特点。

阅读理解。

              The Diet Zone: A Dangerous Place

      Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable

diet... We are surrounded by the word" diet" everywhere we look

and listen. We have so easily been attracted by the promise and

potential of diet products that we have stopped thinking about what

diet products are doing to us. We are paying for products that

harm us psychologically and physically (身体上).

       Diet products significantly weaken us psychologically. On one

level, we are not allowing our brains to admit that our weight

problems lie not in actually losing the weight, but in controlling

the consumption of fatty, high-calorie, unhealthy foods. Diet

products allow us to jump over the thinking stage and go straight

for the scale (秤) instead. All we have to do is to swallow or

recognize the word" diet" in food labels.

        On another level, diet products have greater psychological

effects. Every time we have a zero-calorie drink, we are telling

ourselves without our awareness that we don't have to work to get

results. Diet products make people believe that gain comes without

pain, and that life can be without resistance and struggle.

       The danger of diet products lies not only in the psychological

effects they have on us, but also in the physical harm that they

cause. Diet foods can indirectly harm our bodies because

consuming them instead of healthy foods means we are preventing

our bodies from having basic nutrients (营养成分).  Diet foods

and diet pills contain zero calorie only because the diet industry

has created chemicals to produce these wonder products. Diet

  products may not be nutritional, and the chemicals that go into diet

products are potentially dangerous.

       Now that we are aware of the effects that diet products have

on us, it is time to seriously think about buying them. Losing

weight lies in the power of minds, not in the power of chemicals.

Once we realize this, we will be much better able to resist diet

products, and therefore prevent the psychological and physical

harm that comes from using them.

1. From Paragraph 1,we learn that ____   

A. diet products fail to bring out people's potential

B. people have difficulty in choosing diet products

C. diet products are misleading people

D. people are fed up with diet products

2. One psychological effect of diet products is that people tend to ____  .  

A. try out a variety of diet foods

B. hesitate before they enjoy diet foods

C. pay attention to their own eating habits

D. watch their weight rather than their diet

3. In Paragraph 3, " gain comes without pain" probably means____.       

A. losing weight is effortless

B. it costs a lot to lose weight

C. diet products bring no pain

D. diet products are free from calories

4. Diet products indirectly harm people physically because suchproducts____.    

A. are over-consumed

B. lack basic nutrients

C. are short of chemicals

D. provide too much energy 

5. Which of the following shows the structure of the passage?

CP: central point

P: point

SP: sup-point

C: conclusion

工业挂片应安放在生产设备的一定位置上，使挂片接触腐蚀介质。

与其他金融机构相比，能够( )是商业银行最明显的特征。

A．持有、管理国家外汇储备
B．吸收活期存款、创造货币
C．发行债券
D．以营利为主要目标

滴虫性 * * 炎外用药应选用（）

A.灭滴灵

B.庆大霉素

C.制霉菌素

D.克霉唑

E.他巴唑

换热器在投用时引入冷介质操作中应首先打开冷介质的（）。

A、入口阀

B、出口阀

C、关闭副线阀

D、放空阀