阅读下面的文言文，完成下题。（每小题3分，共9分） 赵彦，肤施人。万历十一年进士

简述拉紧装置有几种形式？

一种商品每件成本p元，按成本增加25%定出价格，则该商品每件售价 [ ]

A．（0.25+p）元

B．0.25p元

C．0.75p元

D．1.25p元

手机灭菌的最佳方法是（）

A.化学消毒剂擦拭

B.酒精浸泡

C.戊二醛浸泡

D.紫外线照射

E.压力蒸气灭菌

Since we are social beings, the quality of our lives depends in large measure on our interpersonal relationships. One strength of the human conditions is our possibility to give and receive support from one another under stressful conditions. Social support makes up of the exchange of resources among people based on their interpersonal ties. Those of us with p support systems appear better able to deal with major life changes and daily problems. People with p social ties live longer and have better health than those without such ties. Studies over types of illnesses, from depression to heart disease, show that the presence of social support helps people defend themselves against illness, and the absence of such support makes poor health more likely.
Social support cushions stress in a number of ways. Firstly, friends, relatives and co-workers may let us know that they value us. Our self-respect is strengthened when we feel accepted by others in spite of our faults and difficulties. Secondly, other people often provide us with informational support. They help us to define and understand our problems and find solutions to them. Thirdly, we typically find social companionship supportive. Taking part in free-time activities with others helps us to meet our social needs while at the same time distracting us from our worries and troubles. Finally, other people may give us instrumental support—money aid, material resources, and needed services—that reduces stress by helping us resolve and deal with our problems.

The researches show that people’s physical and mental health ______.

A. lies in the social medical care systems which support them
B. has much to do with the amount of support they get from others
C. depends on their ability to deal with daily worries and troubles
D. is related to their courage for dealing with major life changes

在决策支持系统中， 【1】 为决策提供了分析能力，数据库子系统为决策提供了数据或资料。