单项选择题

A country's domestic policies ______.

A．can not be forcibly changed by the U. N.
B．are often investigated by the U. N.
C．are often enforced by the U. N.
D．are not allowed to benefit from U.N. advice or assistance

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单项选择题

The essential functions of the U. N. ______.

A．are limited to discussions and debates
B．include co-ordinating actions where necessary
C．are only concerned with human rights
D．are economic and culture