单项选择题

A．She wants the man to listen to the instructions and observe.
B．She wants the man to watch while she performs the operations.
C．She wants the man to ask questions so that she can help him.
D．She wants the man to try to do it while she gives him instructions.
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单项选择题
A．The relationship between mice, rats and monkeys.B．The relationship between diet and animals.C．The relationship between diet and man.D．The relationship between diet and healt
A．The relationship between mice, rats and monkeys.
B．The relationship between diet and animals.
C．The relationship between diet and man.
D．The relationship between diet and healt
单项选择题
A．Man is also a kind of animal.B．There have been men for more than a million years.C．Like any other animals, man slowly changed through time.D．There were men a few million years ago.
A．Man is also a kind of animal.
B．There have been men for more than a million years.
C．Like any other animals, man slowly changed through time.
D．There were men a few million years ago.
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