医学伦理学的实践性表现在（） A.医学伦理学的内容深刻反映时代的经济、社会要求和医学

造血干细胞的特异性免疫标志是（）

A.CD33

B.CD34

C.CD38

D.CD61

E.HLA-DR

阅读理解

     In Yemen,you always see one type of vehicle on the road:the water truck.They travel mountain roads

and cross deserts to bring Yemenis the goods more valuable than oil.It is one that only the rich can afford

with the supply regularly  being cut off.Others must rely on scarce rain or charity to  fight thirst.

     Experts say Yemen is going to be the first country in the world to run out of water.The capital,Sanaa,

will run out of drinking water as early as 2025,says a report by the World Bank.

Hannan,an 18yearold from Lahej,said that only the rich could prepare for cuts in supply."In a good week

we'll have a water supply all week but then the following week there will be water only for a day or two,"

she said.

     She and her husband,a factory worker,pay 3,000 riyals (99 yuan) for a week's supply of water from a

touring water  truck when the taps run dry.With an income of only 20,000 riyals (660 yuan) a month,this

means the family often spend half their money on water.

     "There are a lot of people who can't afford it and they have to rely on their neighbors to help," she said.

     The average person in Yemen survives on onefifth of what the World Health Organization considers to

be enough water.

     In Taiz,in the south,tap water is available only once every 45 days.In the mountainous Malhan district in

the north,women and children climb a 1,500m mountain to collect water from a spring,often in the small

hours to avoid long queues.

     Yemen is located in Southwest Asia,bordering the Arabian and Red Sea.Yemeni people have lived on

scarce water supplies for thousands of years but that problem has been made serious by conflict in the are

a,the fastgrowing population and the use of water to grow a drug called qat.With one of the world's highest

rates of population growth-3.46 percent,Yemen is the poorest Arab country.

     The government is considering desalinating (淡化) seawater,but this would be expensive and it may

now be too late.The only other solution is to cut down on farming,but that means importing even more

food.

1．The passage aims to _____.

A. analyze the reasons why Yemen lacks water

B. suggest some solutions to the water issue in Yemen

C. present how serious the water problem is in Yemen

D. encourage the world to help Yemenis who are suffering from water shortages

2．When Hannan said that only the rich could prepare for cuts in supply,she meant that _____.

A. rich people drank more water than the poor

B. rich people could buy water from the water trucks if there was a water supply cut

C. she had a rich neighbor who often helped her during water supply cuts

D. the rich were not affected by water supply cuts

3．Which of the following may be a reason why Yemen is short of water?

A. The country has had no rain for a long time.

B. The population of Yemen is growing fast.

C. The government has failed to reduce farming.

D. People can't afford the water from government water trucks.

4．The best title for the passage is "_____"．

A. Never take water for granted

B. The water truck-the commonest sight in Yemen

C. The first country to run out of water in the world

D. No water for Yemen

XYZ会计师事务所的A和B注册会计师接受委派，对CDE股份有限公司2005年度会计报表进于；审计。CDE公司尚未采用计算机记账。
(1)A和B注册会计师于2005年11月20日至 30日对公司内部控制制度进行了解和测试，并在相关审计工作底稿中记录了了解和测试的事项，摘要如下：
公司主要生产销售各种品种、规格的饮料。财务科现有人员9人，除两名正副科长外，出纳1人，记明细账2人，管资金、银行托收2人，结算成本2人。该厂销售业务是按照销售合同进行的。当生产车间产品完工后，填制产成品入库单，经验收合格后人产成品库。销售科根据销售合同和产成品入库单填制发货通知单，分别通知仓库发货和运输科办理托运手续。产品发出后，销售科根据仓库签收后转来的发货通知开具发货票，并据以登记产成品明细账，运输科将其与销售发票一并送交财务科，财务科将其与销售合同核对后，开具运杂费清单，通知出纳员办理货款结算，并进行账务处理。
(2)A和B注册会计师审计银行存款时，发现 CDE公司2003年度曾在9家银行开过账户，其中7家银行本年度已结清。A和B注册会计师决定对余下的2家银行发函询证。询证函上的银行存款余额依照银行对账单的存款余额填写。恰好公司出纳到开户行办理结算事宜，为节省时间，注册会计师委托公司出纳将询证函转交银行函证。
要求：
(1)根据上述摘录，假定未描述的其他内部控制不存在缺陷，请指出该公司内部控制在设计与运行方面的缺陷、原因，并提出改进建议。
(2)根据对该公司内部控制的了解和测试，请分别指出上述内部控制缺陷与哪些会计报表项目或科目的何种认定相关。
(3)请指出A和B注册会计师审计银行存款的函证测试程序中存在哪些问题，并说明原因，提出修正建议。

术前常规禁食的主要目的是

A．避免胃膨胀而妨碍手术

B．防止术后腹胀

C．防止围手术期的呕吐及误吸

D．防止术后肠麻痹

E．防止术后便秘

(由单选和多选组成。)

在可供单位较多、采购单位难以抉择时，也可以采用( )。

A．直观判断法

B．加权综合评分法

C．采购成本比较法

D．协商选择法