病人角色假冒

  Health is the most important thing in the world. Nothing is more important than health. If we take away our money, houses, cars, or even our clothes,we can still survive.__ 小题1:___ That is why we always try to eat in a healthy way and exercise regularly.

How can we keep healthy? In order to eat healthily, I usually avoid eating food high in fat,like French fries or cookies,which are junk foods. _小题2:___ I eat a lot of vegetables and fresh fruit which are full of vitamins.

__小题3:___ Taking exercise every day helps us build a strong body. Regular exercise is an important part of keeping me healthy.

What’s more, I think friends are an important part of one’s health.__ 小题4:__ I always feel better when I am with friends than when I am alone. When I am with my friends, I always laugh. Laughing is also an important part of health. It is good to stay with my friends.

By eating properly and exercising regularly, I can keep my body at a proper weight and keep healthy.By spending time with my friends,I can keep my mind as well as my body happy. These things sound easy to do, but not many people can manage them.__ 小题5:___

A．On the other hand, doing exercise is very important.

B．There are some people who like staying alone, but they keep healthy.

C．Many studies show that people with a narrow range of social contacts don’t get sick.

D．But if our health was taken away, it is certain that we would surely die.E. I only eat little meat.

F. I think a strong will is necessary if we want to keep healthy.

G. Some people appear fat because they often eat too much.

有一组数据如下：2，3，a，5，6，它们的平均数是4，则这组数据的方差是       ．

下列哪项不是经食物传播的传染病流行病学的特征（）。

A.病人有进食某共同食物的病史，不食者不发病

B.如食物属一次性大量污染，用餐者中可呈现爆发，并且病人临床经过往往较重

C.停供该食物后，爆发即可平息

D.夏季多发

E.无职业、性别差异

生牡蛎除平肝潜阳外又能（）

A.降逆

B.清肺

C.纳气

D.软坚

E.利尿

某水样的酚酞碱度为JD_FT，全碱度为JD，若2JD_FT＜JD，则可判断该水样中含（）碱性离子。且〔CO₃^2－〕＝（），〔HCO₃^－〕＝（）。