单项选择题

Why has Africa been more affected by AIDS than any other place in the world

A．Because Aft-lea is the place from where AIDS starts to spread worldwide.
B．Because Africans are too brave and resourceful in trying many things.
C．Because there were not systems in place both to prevent people from contracting it and spreading it.
D．Because Africans arc ready to see some changes in every fiel
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单项选择题
A: Do you think that our boss is a kind man B: It is fine weather, isn’t it The above dialogue violates the principle of ______ of CP (Cooperative Principle).
A. manner
B. relation
C. quality
D. quantity
单项选择题
Which of the following is true according to paragraph one
A．Full-time employment is a new international trend.
B．The writer was compelled by circumstances to leave her job.
C．"A lateral move" means stepping out of full-time employment.
D．The writer was only too eager to spend more time with her family.
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