专四

单选题Which of the following is NOT mentioned as an important factor in improving memory?

A． Physical exercis
B． Food suppl
C． Water suppl
D． Enough slee

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1Which of the following is NOT the consequence of lack of sleep?

A． People tend to feel exhausted frequentl
B． People can't concentrate on things wel
C． People will be unable to store informatio
D． People will be unable to count number

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2根据所听材料，回答题According to the passage, which of the following statements is CORRECT?

A． The power of optimism and pessimism is fearfu
B． Optimists are less likely to fall ill than pessimist
C． Optimism is connected with blind fait
D． Pessimism makes people lose interest in anythin

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3Psychologists hold that __________．

A． one is born optimistic or pessimistic
B． pessimism is inherited
C． optimism is acquired when one is very young
D． pessimism is a long lasting habit

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