直接埋在地下的电缆埋设深度一般不应小于（）m，并应在冻土层下。A、0.5 B、0.7

氯胺酮对心血管的作用是（）。

A.直接兴奋心肌，抑制心血管中枢和感觉中枢

B.直接抑制心肌，兴奋心血管中枢和感觉中枢

C.直接兴奋心肌，同时兴奋心血管中枢和感觉中枢

D.直接抑制心肌，同时抑制心血管中枢和感觉中枢

E.以上都不对

权责发生制的内容是（）。

A.凡是本期实现的收入，无论款项是否收到，均作为本期收入处理

B.凡是本期发生的费用，无论款项是否支付，均作为本期费用处理

C.凡不属于本期的收入和费用，即使款项已经收到或支付，也不作为本期收入和费用处理

D.凡是本期收到的款项或本期支付的费用，均作为本期收入和费用处理

阅读理解

     One moming a few years ago, Harvard President Neil Rudenstine overslept. For this busy man. it was a sort of alarm: after years of non-stop hard work, he might wear himself out and die an early death.

     Only after a week's leave-during which he read novels,listened to music and walked with his wife on a beach-was Rudenstine able to return to work.

     In our modern life, we have lost the rhythm between action and rest. Amazingly, within this world there

is a universal but silly saying, "l am so busy. "

     We say this to one another as if our tireless efforts were a talent by nature and an ability to successfully deal with stress. The busier we are, the more important we seem to ourselves and , we imaglne , to others. To be unavailable to our friends and family, and to be unable to find time to relax-this has become the

model of a successful life.

     Because we do not rest,we lose our way. We miss the guide telling us where to go, the food providing us with strength , the quiet giving us wisdom.

      How have we allowed this to happen? I believe it is this: we have forgotten the Sabbath, the day of the week-for followers of some religions-for rest and praying. It is a day when we are not supposed to work, a time when we devote ourselves to enjoying and celebrating what is

beautiful. It is a good time to bless our children and loved ones, give thanks.share meals, walk and sleep. It is a time for us to take a rest, to put our work aside, trusting that there are larger forces at work taking

care of the world.

      Rest is a spiritual and biological need; however,in our strong ambition to be successful and care for our many responsibilities ,we may feel terrbly guilty when we take time to rest. The Sabbath gives us

permission to stop work. In fact, "Remember the Sabbath" is more than simply permission to rest; it is a

rule to obey and a principle to follow.

1. The "alarm" in the first paragraph refers to " ________ ".  

A. a signal of stress      

B. a warning of danger

C. a sign of age            

D. a spread of disease

2. According to Paragraph 4, a successful person is one who is believed to _________.   

A. be able to work without stress

B. be more talented than other people

C. be more important than anyone else

D. be busy workingwithout time to rest

3. Some people feel guilty when taking time to rest because they ________. 

A. think that taking a rest means lacking ambitions

B. fail to realize that rest is an essential part of life

C. fail to realize that religions force them to rest

D. think that taking a rest means being lazy

4. What is the main idea of this passage? ________   

A. We should balance work with rest.

B. The Sabbath gives us permission to rest.

C. It is silly for anyone to say "I am so busy."

D. We should be available to our family and friends.

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