单项选择题
A.shift
B.exchange
C.board
D.change
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单项选择题
Why did the speaker want to work in Nanping
A.He thought experts were more needed there.
B.He wanted to have a good time there.
C.He was invited to work there.
D.He didn’t like to stay in Shanghai any longer.
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单项选择题
What was the purpose of the professor’s experiments
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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