现行经国务院批准的周期性的普查项目，其中每隔5年进行一次的是（）。A．经济普查 B．

患者，26岁。生育史：0-0-0-0，自述妊娠2个月，恶心、呕吐l5天，并逐日加重。妇科检查：子宫增大约4、5个月妊娠大小。

如该患者诊断为葡萄胎应选择下列哪一项处理（）。

A.子宫切除术

B.腹腔镜检查

C.刮宫术

D.保肝治疗

E.静脉补液

合伙经营期间发生亏损，退伙人已分担合伙债务的，对其参加合伙期间的全部债务( )。

A．负连带责任

B．负部分责任

C．负补充责任

D．不负责任

阅读理解

                                    United Nations Climate Change Conference

     The UN Climate Change conference opened in Copenhagen,Denmark on Dec,7th with some 15,000

delegates and observers from nearly 200 countries attending what is called the last best chance for an agreement to combat (与……战斗) global warming.

     Their aim is to find common ground,including on reduction of greenhouse gas emissions,promotion and

transfer of new more ecofriendly technology and the necessary funding to make this possible,especially for the less developed and poorer nations.It also means coming up with long term vision and cooperation for

the future.

     Most scientists believe the warming trend is mainly caused by human activity,especially the use of

fossil fuels and the cutting down of forests.Skeptics (怀疑论者) say global warming is part of a natural

cycle of climate change.

      In Copenhagen,experts and officials alike are putting the emphasis on what people and governments

can do to cut the emission of greenhouse gases.

     Scientists say a 25 to 40 percent cut in carbondioxide emissions is needed to control global warming.

The European Union,China,and India have already promised reductions.The United States is waiting for

Congressional (国会的) approval for a proposal put forward by the Obama administration.

     Barack Obama,President of the United States said,"Each of us must do what,we can when we can to

grow our economies without endangering our planet-and we must all do it together.We must seize the

opportunity to make Copenhagen a significant step forward in the global fight against climate change."

    Desmond Tutu,Archbishop of South Africa said,"Worldwide,we have the chance to start turning the

tide of climate change,but only if all governments commit themselves to a fair,binding(有约束力的) and

sustainable climate agreement in Copenhagen."

1. From the first paragraph we can infer that________.

A. people think that this conference is of no use

B. this conference is the last one to be held about the climate change

C. before this conference nothing could be done with the climate

D. people expect a final agreement will be achieved

2. Which is NOT included in the aim of this conference?

A. To reduce the emission of the greenhouse gases.

B. To develop the agriculture of the developed countries.

C. To cooperate with each other for the future.

D. To transfer new more ecofriendly technology.

3. Which statement is TRUE according to the passage?

A. The USA refuses to reduce the emission of greenhouse gases.

B. The European Union is waiting for all its members'approval.

C. China and India have agreed to cut carbondioxide emissions.

D. South Africa doesn't think much of this conference.

4. What is Obama's attitude according to his words?

A. Doubtful.  

B. Positive.  

C. Negative.  

D. Regretful.

5. ________is the reason of global warming according to the skeptics.

A. Human activity  

B. Fossil fuels

C. The cutting down of trees

D. Natural climate change

治疗腮腺浅叶混合瘤应采用（）

A.肿瘤剜出术

B.保留面神经、腮腺浅叶摘除术

C.腮腺全切术

D.放射治疗

E.化学治疗

采用凯氏定氮法测定乳饮料中的蛋白质，怎样才能提高准确度？