
六年级科学~食物保存法 3
Authored by ASZ Moe
Science
4th - 6th Grade
Used 12+ times

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31 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是冷冻?
将食物收藏在冰箱的冷冻室(0ﹾC)
将食物收藏在冰箱的冷藏室(5ﹾC)
将食物收藏在冰箱的冷藏室(10ﹾC)
将食物收藏在冰箱的冷藏室(100ﹾC)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是冷藏?
将食物收藏在冰箱的冷藏室(高于10ﹾC),食物不会冻结
将食物收藏在冰箱的冷藏室(0ﹾC以下),食物不会冻结
将食物收藏在冰箱的冷藏室(低于18ﹾC),食物不会冻结
将食物收藏在冰箱的冷藏室(高于100ﹾC),食物不会冻结
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
冷冻和冷藏有什么好处?(答案超过一个)
微生物在低温的环境下变得活跃
不会改变食物的味道
不会改变食物的营养成分
微生物在低温的环境下变得不活跃
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么吃不完的食物放入冰箱后,取出来时的食物要加热呢?
冷藏让微生物的活跃,所以加热食物以杀灭微生物。
冷藏只是降低微生物的活跃,当食物恢复到温室时,微生物不会继续生长和繁殖。
冷藏可以让微生物的活跃,微生物会继续生长和繁殖,所以加热食物以杀灭微生物。
冷藏只是降低微生物的活跃,当食物恢复到温室时,微生物会继续生长和繁殖,所以加热食物以杀灭微生物。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是上蜡?
减少或去除食物中所含的水分
抽出食物包装内的全部空气并密封
将蔬菜水果清洗、消毒,在喷上一层蜡
食物被加热以杀灭大部分的微生物然后立即冷却
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
上蜡的好处?(答案超过一个)
保持新鲜
蜡对人体无害
蜡有营养
蜡形成一层保护膜,隔绝空气,阻止微生物生长
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
什么食物适合上蜡?(答案超过一个)
柠檬
苹果
鱼
番茄
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