A. when your plane is about to land B. when you are taking tablets C. when you suffer from food-poisoning D. when you are travel

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问题 A. when your plane is about to land
B. when you are taking tablets
C. when you suffer from food-poisoning
D. when you are travelling
E. when you are packing for your tour
F. when you are having a cold
Food-poisoning may pose a problem______.

选项

答案D

解析 文章的第二段至第五段的内容都在介绍有关旅行中饮食安全方面的问题,故选D。
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