根据《合同法》，下列各类合同中，属于无效合同的有( ) A．恶意串通损害第三人利益

一般说来，由（）支配下的行为更具有持久性。

A．交往动机

B．外在动机

C．内在动机

D．无意识动机

阅读理解。

        Latest data shows an estimated 39.5 million people around the world are living with HIV, the virus

that causes AIDS. According to the report, this means every eight seconds somebody in the world is

infected with HIV, resulting in 11,000 people becoming newly infected every day.

        The director of UNAIDS, Peter Piot, says most of the new infections, nearly two-thirds, are in

Sub-Saharan Africa. But, the biggest increases are in Eastern Europe and Central Asia, where infection

rates have risen by more than 50 percent since 2004. He says 2.9 million people died from AIDS-related

illnesses this year, the highest number ever.

        UNAIDS senior epidemiologist(流行病学家), Karen Stanecki, says infections are rising in countries

where HIV prevention programs have not adapted to the changing nature of the epidemics(流行病).  

Stanecki noted，"In Thailand, one of our past success stories, a large percentage of new HIV infections

are occurring in people considered to be low risk. One third of new infections are among married women."

         It says data shows increased use of condoms has resulted in drops in HIV prevalence(流行) among

young people between 2000 and 2005 in a number of African countries, including Botswana, Kenya and

Zimbabwe. Nevertheless, the report notes young people between the ages of 15 and 24 account for 40

percent of new HIV infections. It finds the risk behavior, such as injecting drug use, homosexuals, is a

factor of concern in many regions of the world, especially in Asia, Eastern Europe and Latin America.

        The report notes the emergence (出现) of injecting drug use as a factor of HIV in Kenya, Tanzania,

Nigeria and South Africa is a recent development in Sub-Saharan Africa.

1. According to the news report, how many people are newly infected with HIV a year?

A. 39.5 million.

B. 2.9 million.

C. 3.5 million.

D. 4 million.

2.The highest rate of new HIV infection is in ________.

A. Sub-Saharan Africa

B. Eastern Europe

C. Central Asia

D. both A and B

3. The underlined word “noted” in the third paragraph mean?

A. specially mentioned

B. said angrily

C. fully noticed

D. uttered weakly

4.Which of the following statements is Not True?

A. Most of new infections of HIV are among married women.

B. Two fifths of the new infections are among young people aged 15 to 24.

C. The risk behavior, such as injecting drug use and homosexuals, exists in many parts of the world.

D. Injecting drug use occurs in many African countries.

5.What is the main idea of the new report?

A. More and more women in the world are getting new HIV infection.

B. The AIDS epidemic continues to grow in the world.

C. The AIDS epidemic has been reduced in the world.

D. No one can tell when the AIDS epidemic will be completely controlled.

女性，34岁。活动后心悸、气促3年，加重伴双下肢水肿半年。查体：消瘦，贫血貌。心界不大，心音弱，未闻及杂音。腹部隆起，移动性浊音阳性。双下肢凹陷性水肿。X线胸片：心影周围可见钙化影。最可能的诊断是（）。

A.二尖瓣狭窄

B.二尖瓣关闭不全

C.左房黏液瘤

D.慢性缩窄性心包炎

E.以上都不是

最近南方某保健医院进行为期10周的减肥试验，参加者平均减肥9公斤。男性参加者平均减肥13公斤，女性参加者平均减肥7公斤。医生将男女减肥差异归结为男性参加者减肥前体重比女性参加者重。从上文可推出以下哪个结论

A．女性参加者减肥前体重都比男性参加者轻。

B．所有参加者体重均下降。

C．女性参加者比男性参加者多。

D．男性参加者比女性参加者多。

副起爆药是（）但威力大的炸药。