单项选择题

The writer believes the problems of chaos and noise will most probably only be solved by（）

A．the students themselves.
B．the students' parents.
C．the college authorities.
D．the newspaper.

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单项选择题

In the animal kingdom the struggle for existence（）

A．is evidence of the inevitability of conflict among the fittest.
B．arises from a need to live in groups.
C．is evidence of the need to compete for scarce resources.
D．arises from a natural desire to fight.

单项选择题

According to the author which of the following is inevitable（）

A．War.
B．Conflict.
C．Competition.
D．Cooperation.