单项选择题

Passage One Questions 26 to 28 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．Driving a car.B．Taking a taxi.C．Going by train.D．Taking the subway.
A．Driving a car.
B．Taking a taxi.
C．Going by train.
D．Taking the subway.
单项选择题
A．To transport water to higher place.B．To transport vegetables quickly.C．To bring nutrients to the soil.D．To adjust the soil temperature.
A．To transport water to higher place.
B．To transport vegetables quickly.
C．To bring nutrients to the soil.
D．To adjust the soil temperature.
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