Y6: 食物的保存 #2

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•
English
•
6th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
什么是食物保存?
Back
食物保存是指通过各种方法延长食物的保质期,防止其变质或腐烂。
2.
FLASHCARD QUESTION
Front
食物保存的常见方法有哪些?
Back
常见的方法包括冷藏、冷冻、腌制、干燥和真空包装等。
3.
FLASHCARD QUESTION
Front
冷藏的作用是什么?
Back
冷藏可以减缓细菌的生长,从而延长食物的新鲜度。
4.
FLASHCARD QUESTION
Front
冷冻与冷藏的区别是什么?
Back
冷冻是将食物在极低温度下保存,而冷藏是在较低但不至于冻结的温度下保存。
5.
FLASHCARD QUESTION
Front
腌制食物的原理是什么?
Back
腌制通过使用盐、醋或糖等物质来抑制细菌生长,从而延长食物的保存时间。
6.
FLASHCARD QUESTION
Front
干燥食物的好处是什么?
Back
干燥可以去除食物中的水分,防止细菌和霉菌的生长。
7.
FLASHCARD QUESTION
Front
真空包装的作用是什么?
Back
真空包装通过去除包装内的空气,减少氧气的存在,从而延长食物的保质期。
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