单项选择题

The main theme of this passage is to discuss ______.

A．how the U.N. scientists can help the Africans away from AIDS
B．the three problems that will occur in Africa in the next 20 years
C．how AIDS will impact Africa without effective policies against it
D．the achievements made by the U.N. scientists on AIDS in Africa
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单项选择题
The three scenarios described by Dr. Noack stand for ______.
A．three scenes that will appear in the continent of Africa
B．the migerable fate of Africa in three different aspects
C．three different kinds of fates Africa could have
D．three different societies of people in Africa
单项选择题
The reason why poverty is one of the factors affecting the impacts of AIDS in Africa is that ______.
A．it's the biggest problem in Africa and leads to other problems
B．it makes it difficult for individuals and governments to fight the disease
C．the starving people are easier to be infected by AIDS
D．the AIDS pandemic can't afford the treatment because of poverty
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