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单项选择题

The word "contingencies" underlined here means

A．uncertainties.
B．dependent conditions.
C．incidental thought.
D．events that may occur.

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单项选择题This article is about

A．time sense in animals.
B．how man's time sense separates him from animals.
C．man's preoccupation with past and future events.
D．how apes understand time relationships.

单项选择题According to the article, which of the following statements is TRUE

A．Chimpanzees' sense of time is as good as man's.
B．Man developed from apes.
C．Memory and foresight contribute to intelligence.
D．Monkeys and apes are almost as intelligent as man.

单项选择题It is significant that chimpanzees make tools, but it is more important that

A．they never make tools before they need them.
B．they can make up simple equations.
C．they stack items to make platforms.
D．the tools are crude.

单项选择题The social and cultural background can affect

A．the interaction among people involved in the decision.
B．the cultural framework.
C．the traditional life-time employment.
D．the social and cultural restriction.

单项选择题Groups of experts often come up with

A．better solutions than individuals.
B．worse solutions than individuals.
C．no solution at all.
D．a lot of solutions.