单项选择题

Passage One Questions 26 to 29 are based on the passage you have just heard.

A．To transport water to high places.
B．To provide air conditioning.
C．To fertilize the soil.
D．To adjust the soil temperature.
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单项选择题
A．To get a little exercise.B．To take in some fresh air.C．Hoping to get something to eat.D．To visit the rich owner.
A．To get a little exercise.
B．To take in some fresh air.
C．Hoping to get something to eat.
D．To visit the rich owner.
单项选择题
A．Plants in Hawaii.B．Uses for cold seawater.C．Techniques for protecting environment.D．The importance of saving energy.
A．Plants in Hawaii.
B．Uses for cold seawater.
C．Techniques for protecting environment.
D．The importance of saving energy.
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