单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．The problem may have been a very complicated one.
B．No one can do it.
C．The woman thinks that the problem is too easy.
D．The man can solve the problem himself.
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单项选择题
According to the passage, memory is helpful in one’s life in the following aspects EXCEPT that ______ .
A．it involves a change in one’s behavior
B．it keeps information for later use
C．it warns people not to do things repeatedly
D．it enables one to remember events that happened in the past
单项选择题
A．bringB．produceC．transferD．pump
A．bring
B．produce
C．transfer
D．pump
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