单项选择题
Why did the professor put the food in a small box
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A. To give the monkey a surprise.
B. To see how the monkey ate from a box.
C. To see how soon the monkey could find it.
D. To find out how the monkey would open the box.
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单项选择题
[A] entertained B. relaxed C. amused D. enlightened
[A] entertained
B. relaxed
C. amused
D. enlightened
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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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