题目

听录音，回答问题。 （1） How can frozen food be kept cold at ordinary temperatures? A . By using bags. B . By using water. C . By using paper. （2） What is advised to do when camping? A . Keep milk in a cooler box. B . Never cook meat or eggs. C . Use special dry foods. （3） What is the passage mainly about? A . How to pick up fresh food. B . How to eat healthily in different weather. C . How to keep food from going bad in summer. 答案： A C C

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