单项选择题

Which of the following region is the second hardest hit region by AIDS in the world

A．Caribbean.
B．Western Europe.
C．The United States.
D．Central Asia.
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单项选择题
What's the most likely reason for the new outbreak in China, according to Chinese officials
A．Surveillance failure.
B．Migratory birds.
C．Lack of regulations and rules.
D．Lack of money.
单项选择题
Which one of the following four statements is not one of the measures taken by Chinese government to contain the new bird flu outbreak
A．To quarantine the infected areas.
B．To kill all poultry within two kilometers of the infected farm.
C．To ban the poultry sale across the country.
D．To quarantine the residents living close to the infected farm.
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