单项选择题

Sub-Saharan African countries ______.

A．will have the largest world population by 2020
B．have the highest reproductive rate in the world
C．are only modestly affected by AIDS
D．will have increasingly long life spans

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热门试题

单项选择题

The author used the history of China and Iran in order to ______.

A．criticize these countries
B．explain the effect of massive repression on opium production and assumption
C．warn Afghanistan government
D．prove these countries are not "democratic"

单项选择题

Which one is not the reason why Afghanistan government can not eliminate opium quickly

A．Opium is closely related with the economy situation of Afghanistan people.
B．It is a hard job which needs time.
C．Afghanistan is not a democratic country.
D．It is a problem left by history and it need more patienc