What do you mean by saying there are onl

Health is the most important thing in the world. Nothing is more important than health. If we take away our money, houses, 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 food. 小题2:  I eat a lot of vegetables and fresh fruit which are full of vitamins (维生素).

 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 I am alone. When I am with friends, I always laugh. Laughing is also in important part of health. It’s good to stay with my friends.

By eating properly and exercising regularly, 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．One the other hand, doing exercise is very important.

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

C．Many students show that people with a wide range (范围) of social contacts (接触) 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 want to keep healthy.

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

某公司近年来一直专注于生产S型电机，在整个电机市场产品结构中，甲型、乙型、丙型、S型电机的构成比例分别为20%、15%、8%和0.5%。该公司充分发挥自身的技术优势，做精做专，成为S型电机领域的佼佼者，同时产品还替代进口。据此判断，该公司在电机行业的市场定位是（）。

A．市场领先者

B．市场挑战者

C．市场跟随者

D．市场补缺者

外源性事件相关电位是接受外部刺激后____产生的电位有赖于感觉通道的完整性。

水平交叉时将金属止水片剪裁后焊接成整体，这种连接方法是( )。

A．柔性连接
B．刚性连接
C．接触连接
D．非接触连接