单项选择题

A. Planting trees.
B. Saving energy.
C. Going electronic.
D. Conserving Water.
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单项选择题
A. Chasing fads.B. Taking hot tips.C. Buying penny stocks.D. Buying country fund.
A. Chasing fads.
B. Taking "hot" tips.
C. Buying penny stocks.
D. Buying country fund.
单项选择题
A. Because he has a bad back. B. Because he has a headache. C. Because he has a toothache. D. Because he has a stomachache.
A. Because he has a bad back.
B. Because he has a headache.
C. Because he has a toothache.
D. Because he has a stomachache.
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