单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.
What is the passage mainly concerned about

A．The difference between dream and dreamless sleep of human beings.
B．Why animals with distinctive life style sleep differently.
C．Deep dream sleep of predators.
D．Stupid animals and smart animals.
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单项选择题
According to the woman, why is it important to get along with our neighbors
A．Neighbors make a sanctuary for us.
B．Relationship with neighbors is important to our health and happiness.
C．Neighbors can help to water our plants and pick up our mails.
D．Neighbors may produce troubles to us if we fall to establish a polite relationship with them.
单项选择题
What are the speakers talking about
A．Tobacco advertisement.
B．Tobacco companies.
C．Smoking men.
D．Smoking women.
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