单项选择题

Passage Two
Questions 30 to 32 are based on the passage you have just heard.

A．Uses of cold sea water.
B．Irrigating desert areas.
C．Techniques for preserving the environment.
D．Techniques of cultivating plants.
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单项选择题
A．Talking about if the woman waited in line.B．Exchanging the telephone numbers.C．Saying hello to each other.D．Talking about their children.
A．Talking about if the woman waited in line.
B．Exchanging the telephone numbers.
C．Saying hello to each other.
D．Talking about their children.
单项选择题
A．To wear jackets to work.B．Not to use air-conditioners.C．To wear shirt sleeves.D．To take all measures to conserve energy.
A．To wear jackets to work.
B．Not to use air-conditioners.
C．To wear shirt sleeves.
D．To take all measures to conserve energy.
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