The expression "a pregnant woman" (Para. 3) means ______.
A. a woman who has an unborn child in the body
B. a woman who is taking drug
C. a woman who has the AIDS virus
D. an unmarried mother
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______ is NOT a warning sign of an AIDS infection.
A. Shedding blood
B. Always feeling tired
C. Unexplained weigh loss
D. Uncontrolled expulsion of body wastes
The memorable evening include all the following EXCEPT ______.
A. fireworks
B. singing together a famous song
C. a solo by a famous singer
D. the holding of the World Cup by Deschamps
Sometimes cooling systems have to be installed ______.
A. to keep the computer from becoming too hot
B. in order to save power
C. because they are necessary for a modern computer to work efficiently
D. to ensure the normal working of a mini-computer
The fifth paragraph is mainly about ______.
A. the results of an AIDS infection
B. the possible symptoms of an AIDS infection
C. how the AIDS virus is spread
D. the diseases AIDS patients easily have