Experts say that walking is one of the best ways for a person to______ healthy.

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问题 Experts say that walking is one of the best ways for a person to______ healthy.

选项 A、preserve
B、stay
C、maintain
D、reserve

答案B

解析 四个选择项中只有stay习惯上与healthy搭配使用,其余均不可。stay"停留,保持下去",如:The weather stayed fine for a week."天气晴朗持续了一周。"preserve"保护,保存",如:to preserve one’s eyesight"保护视力". maintain"维持,维修",如:to maintain good social order"维持良好的社会秩序"。reserve"保留,保存",如:to reserve one’s energy"保存精力"。
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