单项选择题

It can be inferred from the passage that China fall behind South Africa because ______.

A．there are not enough medical experts in AIDS.
B．the government's attitude toward AIDS problem is still to be changed.
C．of the lack of experience.
D．china have not enough money.

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单项选择题

The author write this passage mainly to______.

A．bring up some facts about AIDS preventing and curing in the world.
B．urge Chinese government to do something about AIDS.
C．compare two countries in the AIDS-related work.
D．say something about the development in the AIDS preventing method.

单项选择题

This passage may be______.

A．a report on the annual meeting of the UN.
B．a research report by a socialist for the government.
C．an arguing paper on a publication .
D．a pamphlet delivered to the public.