社会规范：当前学校德育建设要以社会规范学习为核心。

考察队在云南西双版纳的科学考察的过程，最不可能看到的场景是[ ]

A、高大挺拔的望天树

B、气势磅礴的“独木成林”

C、美丽可爱的绿孔雀

D、动物界的跳远名将——袋鼠

阅读理解。

     Karen, grown up in a very traditional family in the western United States, maintained high moral

(道德的) standards throughout her youth. In 1984, at the age of 23, she married Bill. They were

blessed with two children, a boy and a girl.

      By 1991 their love had deepened, and they were happy.  Later that year, Bill developed a white

spot on his tongue. He visited a doctor.

     One day shortly after that, Bill called Karen to sit beside him. He said with tears in his eyes that he

loved her and wanted to live forever with her. The doctor suspected that he had been infected with HIV,

the virus that leads to AIDS.

     The family was tested, Bill and Karen's results were positive. Bill had become infected before he met

Karen then he passed the virus on to Karen. The children's results were negative. Within three years. Bill

was dead, "I don't know how to express what it is like to watch the once handsome man you love and

intend to live with forever dying slowly. I cried many nights. He died three months short of ten years of

our marriage," says Karen. Though a doctor told Karen that she would soon follow her husband into death,

she is still alive. The infection has progressed to the early stages of AIDS.

     Karen is hut one of about 30 million people now living with HIV/AIDS, a figure larger than the

combined populations of Australia. Ireland and Paraguay. According to one UN report, Africa has 21 million

of these victims. By the turn of the century that number could reach 40 million and the disease will bring

on the greatest disaster in human history. Of the world's sexually active adults aged 15 to 49. 1 in 100 has

already been infected with HIV. Of these, only 1 in 10 realizes that he or she is infected. In some parts of

Africa, 25 percent of the adults are infected.

     Since the beginning of the spread of AIDS in1981, about 11.7 million people have died of it. It is

roughly calculated that in 1997 alone, about 2.3 million people died of it. Nevertheless, there are fresh

reasons for optimism in the battle against AIDS. During the past few years, there has been a drop in new

AIDS cases in wealthy nations. In addition, promising drugs hold out hope of better health and longer life.

1. By telling the story of Karen, the author intends to _____.

A. warn people against high risk behaviors

B. stress the importance of medical tests

C. express sympathy for AIDS victims

D. show the consequences of AIDS

2. The underlined part in Paragraph 1 most probably means"_____ ".

A. were lucky in having

B. were asked to adopt

C. regretted having

D. gave birth to

3. Bill was suspected of being infected with HIV after _____.

A. he got married to Karen

B. the family members were tested

C. Karen persuaded him to see the doctor

D. he found something wrong with his tongue

4. It can be concluded from the passage that _____. 

A. promising drugs will soon stop AIDS

B. the spread of AIDS could be controlled

C. it is hopeless to win the battle against AIDS

D. the death rate of AIDS patients has been reduced

男性，25岁，心悸气短6年，近2周症状加重，伴下肢浮肿。查体：心界向两侧扩大，心尖部有隆隆样舒张中晚期杂音及收缩期3/6级吹风样杂音，胸骨左缘第3肋间有哈气样舒张期杂音，血压145/50mmHg。最可能的诊断是（）

A.二尖瓣狭窄合并肺动脉瓣关闭不全

B.二尖瓣狭窄合并主动脉瓣关闭不全

C.二尖瓣狭窄合并二尖瓣关闭不全

D.二尖瓣关闭不全合并主动脉瓣关闭不全

E.二尖瓣窄漏合并主动脉瓣关闭不全

以下哪一项是两家公司为灾难恢复签订互惠协议而面临的最大风险？（）

A.各自的发展将导致（互相间）软硬件不兼容。

B.当需要时资源未必可用。

C.恢复计划无法演练。

D.各家公司的安全基础架构可能不同。

下井人员不得穿（）衣服。

A、化纤

B、易产生静电的衣服

C、新的

D、工作