It is generally believed that swimming is one of the best ways for a person to ______ good health.

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问题 It is generally believed that swimming is one of the best ways for a person to ______ good health.

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

答案D

解析这四个动词都有保持的意思，但是用法不同。“保持健康”应该用maintain／keep health；preserve常指“保存，保护(视力，和平等)”；reserve指“保留，预定(座位，房间等)：sustain指“承受，维持(失败，损失等)”。

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大学英语四级

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