单项选择题

Passage Three

A. The threat of poisonous desert animals and plants.
B. The exhaustion of energy resources.
C. The destruction of oil wells.
D. The spread of the black powder from the fires.
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单项选择题
D
单项选择题
A. The man shows off his new sweater. B. The man complains about the salesman. C. The woman teaches him how to stand up to the salesman. D. They discuss who is good at shopping.
A. The man shows off his new sweater.
B. The man complains about the salesman.
C. The woman teaches him how to stand up to the salesman.
D. They discuss who is good at shopping.
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