可将资源转移至死亡率监测工作的其他部分，如死亡率验证。

Resources could be better diverted to other parts of the mortality surveillance process, such as validation.

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研究显示，适量饮酒，如每日饮酒一到三杯，可降低死亡率。

Moderate drinking, which is defined as one to three drinks per day, is associated with the lowest mortality rates in alcohol studies.

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当城市贫困家庭（如贫民窟）的儿童死亡率较高时，农村/城市的儿童死亡率会小于1。

Ratios less than 1 sometimes arise when the children of the urban poor (e.g., slum dwellers) suffer high mortality rates compared with the rural population (22, 23).

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