六年级科学-食物的保存
Quiz
•
Science
•
6th Grade
•
Practice Problem
•
Medium
LOW Moe
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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些食物的保存法可以杀灭大部分微生物?
(答案可以多过一个)
真空包装
煮沸
干藏
巴氏杀菌法
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些食物保存法可以减少食物的水分并让微生物无法生存。(答案可以多过一个)
上蜡
烟熏
冷冻
干藏
装罐和装瓶
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
食物的变质主要是由______引起的。
病毒
跳蚤
微生物
炎热的天气
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
冷藏能有效地保存食物一段时期。这是因为___________。
微生物在低温时会冬眠
微生物在低温会死亡
微生物在诋毁会变得不活跃
微生物喜欢高温
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪种食物保存法会将食物加热然后冷却?
盐腌
冷冻
真空包装
巴氏杀菌法
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
哪种食物保存法是以隔绝空气来保存食物?
(答案可以多过一个)
腌制
上蜡
真空包装
高温处理
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图里的食物使用了什么食物保存法?
上蜡
腌制
干藏
真空包装
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