[填空题]AIDS is reported (be) ______ the biggest challenge to the people in that region over the past few years.

[单项选择]

Since the first reported case of AIDS in the United States in 1981, the disease has spread both numerically and geographically. According to the World Health Organization, 28 million people in the world already carry the AIDS virus. What is most alarming is that the disease is not only found in homosexuals, prostitutes or drug abusers, but also in innocent people, including children. In some countries in Africa, the situation is very serious indeed.
The AIDS virus, now known as HIV, passes from mother to child in uterus, during birth, and possibly through breast-feeding. Because of the high HIV-positive rates among pregnant African women, the AIDS epidemic among children will only grow worse. In Kinshasa, Zaire, for example, eight percent of the pregnant women in a prenatal clinic tested HIV-positive.
As many as half the children born to HIV-positive mothers will themselves be infected. Right now in some parts of Africa, five percent of new-borns are HIV-positive,
A. The disease has spread to many countries in the world.
B. The disease has spread to large numbers of people.
C. The disease has spread very fast in Africa.
D. The disease has spread in number and from place to place.

[单项选择]What is the biggest challenge in bird flu control in Indonesia（　）.
A. Shortage of medicines.
B. People’s close contact with sick people.
C. Shortage of doctors.
D. People’s close contact with chickens.

[填空题]For many people, the biggest challenge in the workplace would be interacting efficiently with others.

[单项选择]AIDS
A. 检测特异性抗体
B. 检测特异性抗原
C. 检查内基小体
D. 检查包涵体
E. 检测病毒表面抗原

[单项选择] AIDS AIDS is Acquired Immune Deficiency Syndrome. The human immunodeficiency virus (人类免疫缺损病毒)called HIV is believed to cause AIDS. There is no cure. People who get the disease will die. AIDS itself does not kill. However, it attacks and destroys the body’’s defense system that fights against infection. When this happens, a person has little ability to fight off many other diseases including pneumonia(肺炎), cancer and tuberculosis (结核病). A new study says the number of women in the United States with AIDS has increased sharply. The study says AIDS is increasing faster among women than among men. Eighteen percent of AIDS patients are women. This is almost 3 times the rate 10 years ago. Most women get the AIDS virus from having sexual relations with men. Pregnant women with the disease can pass it to their babies. The effect of AIDS in America is greatest in large cities. AIDS is the leading cause of death among all people in 79 cities. It is th
A. some people have changed their sexual activity.
B. some Americans kill people with AIDS.
C. some Americans hate and fear people with AIDS.
D. some Americans show sympathy for people with AIDS.