A. once every two years.
B. once a decade.
C. once a year.
D. twice a year.
3.According to Lee, our response to the AIDS disease is
A. a matter of great significance.
B. a matter of little significance.
C. overemphasized.
D. timely
4.AIDS treatment programs may also result in
A. better drugs.
B. lower yearly cost.
C. more effective prevention.
D. greater emphasis on treatment.
5.How many people have died of AIDS so far?
A.36 million.
B. 46 million.
C. Around 440,000.
D. More than 20 million.
答案:B、C、A、C、D