单项选择题

Passage Three

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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A. Uses of cold sea water.B. Irrigating desert areas.C. Techniques for preserving the environment.D. Techniques of cultivating plants.

A. Uses of cold sea water.
B. Irrigating desert areas.
C. Techniques for preserving the environment.
D. Techniques of cultivating plants.
单项选择题
A. On the 6th of December. B. On the 7th of December.C. On the 26th of December. D. On the 27th of December.
A. On the 6th of December.
B. On the 7th of December.
C. On the 26th of December.
D. On the 27th of December.
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