单项选择题

A．To find out how clever monkeys were.
B．To test intelligence of different animals.
C．To tell the difference between man and the monkeys.
D．To find out how monkeys search food.
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单项选择题
A．Susan Evans rings a bell.B．The name sounds familiar to the man.C．The man never heard of the name.D．The man is not sure about the bell.
A．Susan Evans rings a bell.
B．The name sounds familiar to the man.
C．The man never heard of the name.
D．The man is not sure about the bell.
单项选择题
A．The man.B．The woman.C．Both the man and the woman.D．Neither the man nor the woman.
A．The man.
B．The woman.
C．Both the man and the woman.
D．Neither the man nor the woman.
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