对某一疾病进行筛检时，经筛检检出的病例有较长的临床前期，这些病例的生存期可能较长。为

患者男，57岁，胰十二指肠切除术后6天发生胰漏，出现呼吸深快。查体：面色潮红，心率110次/分，血压90/60mmHg，腱反射减弱。动脉血气分析：pH7.27，PaCO₂28mmHg，BE-15mmol/L。

若代谢性酸中毒纠正后，患者出现心律失常，T波低平，应首先考虑（）。

A.呼吸性酸中毒

B.呼吸性碱中毒

C.低血钾

D.低血钙

E.高渗性脱水

下列叙述中错误的是

A．在数据库系统中，数据的物理结构必须与逻辑结构一致

B．数据库技术的根本目标是要解决数据的共享问题

C．数据库设计是指在已有数据库管理系统的基础上建立数据库

D．数据库系统需要操作系统的支持

9岁患儿，水肿3天，少尿，血尿2天，伴呼吸困难，双肺底少许湿啰音，心率142次／分，肝肋下2.5cm，血压120／83mmHg。

首要处理的重点是（）

A.静滴青霉素

B.口服泼尼松

C.用地高辛

D.口服硝苯地平

E.静注呋塞米

阅读理解。

     A friend of mine,in response to a conversation we were having about the injustices of life,

asked me the question,"Who said life was going to be fair,or that it was even meant to be fair

?" Her question was a good one.It reminded me of something I  was taught as a youngster:life

isn't fair.It's a disappointment,but it's absolutely true.One of the mistakes many of us make is

that we feel sorry for ourselves,or for others,thinking that life should be fair,or that someday

it will be.It's not and it won't be.

     One of the nice things about surrendering (屈从) to the fact that life isn't fair is that it keeps

us from feeling sorry for ourselves by encouraging us to do the very best we can with what we

have.We know it's not "life's job" to make everything perfect:it's our own challenge.Surrendering

to this fact also keeps us from feeling sorry for others because we are reminded that everyone is

dealt a different hand；everyone has unique strengths and problems in the process of growing up,

facing the reality and making decisions；and everyone has those times that they feel unfairly treated.

     The fact that life isn't fair doesn't mean we shouldn't do everything in our power to improve our

own lives or the world as a whole.To the contrary,it suggests that we should.When we don't recognize

or admit that life isn't fair,we tend to feel pity for others and for ourselves.Pity,of course,is a selfdefeating

emotion that does nothing for anyone,except to make everyone feel worse than they already do.When

we do recognize that life isn't fair,however,we feel compassion (热情) for others and for ourselves.And

compassion is a heartfelt emotion that delivers lovingkindness to everyone it touches.The next time you

find yourself thinking about the injustices of the world,try reminding yourself of this very basic fact.You

may be surprised that it can make you out of selfpity and into helpful action.

1．The writer thought of his friend's question as a good one because ________.

A．he also wanted to know who held such an opinion

B．it made him recall something during his childhood

C．like his friend,he also thought life was unfair

D．he learned something from the question as a youngster

2．The second paragraph of the passage mainly tells us that ________.

A．it's nice to accept the injustice of life

B．it's nice to surrender to life

C．we should not feel sorry for everything

D．we should not surrender to life

3．From the passage,we can learn that the author's attitude to life is ________.

A．negative  

B．positive  

C．selfpity  

D．indifferent

4．Which of the following could be the best title of the text?

A．A Helpful Action:Try to Feel Compassion

B．A Good Question:Why Life Isn't Fair

C．Do Our Best to Improve Ourselves

D．Surrender to the Fact That Life Isn't Fair

试从组成，功用，主治方面比较银翘散与桑菊饮的异同？