单项选择题

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

A．To protect environment.
B．To cool buildings.
C．To change the climates.
D．To provide drinking water.
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单项选择题
A．He wonders about the usefulness of the protest.B．He thinks the present tuition is fair.C．He doesn’t know how many students protested.D．He doesn’t know how much the school charges for tuition.
A．He wonders about the usefulness of the protest.
B．He thinks the present tuition is fair.
C．He doesn’t know how many students protested.
D．He doesn’t know how much the school charges for tuition.
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