摘要：1899] Eating better, and eating less, could be the not only to avoiding cancer but to living langer. [译文] 吃好.吃少.可能不只是避免癌症的关键.而且是长寿的关键. A. key B. foundation C. rule D. importance [答案及简析] A. key to -的关键.前面多加冠词the.

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