It' can be inferred from the passage that
A. some radio broadcasting stations use hotlines for advertisements.
B. it is not a good idea for some radio broadcasting stations to use hotlines.
C. some people use hotlines in a wrong way.
D. some people have unclear thoughts.
查看答案
What is discovered by scientists at Brown University？
A. The inhibitor of the HIV transrmssion.
B. An effective way to deliver AIDS drugs.
C. A good strategy to prevent HIV transmission.
D. Bacteria from yogurt may help fight HIV.
正确答案是（）
A. however
B. whereas
C. with
D. though
正确答案是（）
A. bottoms
B. lengths
C. depths
D. darkness
Hippies gave flowers to people because they
A. wanted a world based on love of humanity and peace.
B. could not find jobs and had to sell flowers for a living.
C. wanted to tell people that they were badly in need of love.
D. wanted to show people that they meant no harm to them.
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