The control process is a three-step process that includes unfreezing the system, chang

A、根据工艺专业提出的监控条件绘制工艺控制图(PCD:Process Control Diagram)

B、配合系统专业绘制各版管道仪表流程图(P&ID: Piping and Instrumentation Drawing)

C、征集研究用户对P&ID及仪表设计规定的意见

D、编制仪表请购单，配合采购部门开展仪表和材料的采购工作

E、确定仪表制造商的有关图纸，按仪表制造商返回的技术文件，提交仪表接口条件，并开展有关设计工作

F、编(绘)制最终自控工程设计文件

ver？ If you have, don’t feel alone! It’s a very common, natural wish that has a long history.Spanish explorers of the sixteenth century even tried to find a fountain of youth in what is now the state of Florida.The water the this legendary fountain, which no one has yet found, was believed to restore youth and good health to those who drank it.

Biologists today don’t expect that anyone will find a magical fountain of youth.Growing older is a natural part of the life cycle that can’t be reversed.As human beings grow older, organs such as the heart and lungs may stop functioning properly.Sight and hearing may become weak.And the human body becomes more likely to come down with serious illnesses from which it cannot recover.

Considered together, changes that bring about the decline of an organism are called aging.Because of aging, many biologists believe that there may be a maximum age limit to which even the healthiest organisms can live.For human beings, this maximum age limit is about 110 years.

Perhaps the most important thing that you can learn from your study of human biology is that you have a lot of control over the aging process in your own life.In fact, within our control are many physical and mental factors that have much to do with aging.For example, each of us, as recent research indicates, can do many things to help prevent heart and vessel disease, which causes half the death each year in the United States.We can avoid eating a lot of fatty meat.Eating too much of these types of animal fats can lead to the clogging and hardening of blood vessels.We can cut back on smoking and hopefully quit entirely.We can limit the amount of alcohol we drink and the amount of sugar we eat.We can exercise regularly and strengthen the heart and other organs.And we can remember to take time out each day for ourselves, time just relax.Exercise, recreation and relaxation all reduce stress – inner tension that is hard on all body organs.

One final thing we can do is to try to keep aware of advances made in health education.Information is often available free of charge from health clinics or schools.

1.Which of the following is the leading cause of death in the United States？

A.Heart disease.

B.Cancer

C.Alcohol

D.Smoking

2.What happens as people grow older？

A.They dream of a magic pill to help them live a happy and long life

B.They come down with serious illnesses

C.Their organs become weak and may stop working properly

D.Their blood vessels become clogged

3.In the opinion of biologists, _________.

A.the aging process can be reversed

B.the aging process can be controlled and slowed down

C.the aging process can be got rid of

D.the aging process can go beyond its limit

4.We can slow down the weakening of all our body organs by ______.

A.not eating animal fat

B.limiting drinking and smoking

C.exercise, recreation and relaxation to reduce stress

D.preventing the clogging and hardening of blood vessels

5.Besides physical and mental factors, which of the following also contributes to living a long and healthy life according tot the passage？

A.Health education

B.Traditional medicine

C.artificial organs

D.The invention of magic pills

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B.title-conclusion-abstract-charts-introduction-results-discussion-methods

C.title-abstract-conclusion-charts-introduction-discussion-result-methods

D.following the order of the paper

thought, time, and effort.

A) significant B) considerable

C) enormous D) numerous

A.Raw Materials Inventory

B.Work in Process Inventory

C.Finished Goods Inventory

D.Cost of Goods Sold

A.cosmetic

B.plastic

C.realistic

D.domestic

The fire was finally brought under control, ___________ extensive damage had been caused.

A) before B) since C) after D) as

process and go back to the difficult points in the lessons.

A)at a distance B)at intervals

C)at case D)at length

A.假期

B.生产

C.生产休息时间

D.日常性的工作