单项选择题

A．To find out how clever monkeys were.
B．To test the intelligence of different animals.
C．To compare the difference between man and the monkey.
D．To find out how monkeys search for food.
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单项选择题
A．For protection against other animals.B．For protection against other dogs.C．Just for fun.D．For the purpose of guarding the house.
A．For protection against other animals.
B．For protection against other dogs.
C．Just for fun.
D．For the purpose of guarding the house.
单项选择题
A．It remains to be decided.B．To go on a voyage.C．To go to Egypt.D．To stay at home to look after everything.
A．It remains to be decided.
B．To go on a voyage.
C．To go to Egypt.
D．To stay at home to look after everything.
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