As poor people in one of the poorest countries, they had been trying to （ ）as much food as possible for the winter.
A、process
B、hoard
C、preserve
D、retain
【正确答案】：B
【题目解析】：process 处理 加工; hoard 贮藏; preserve 保护; retain 保持 保留
As poor people in one of the poorest countries, they had been tr
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