
六年级科学-食物保存法
Quiz
•
Science
•
6th Grade
•
Medium
KEH Moe
Used 153+ times
FREE Resource
23 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
为什么以煮沸或高温处理的食物只可以保存较短的时间?
所使用的温度只能让微生物变得不活跃
所使用的温度只能杀灭食物表面上的微生物
当食物的温度恢复到室温时,微生物会重新生长
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
上图显示两种食物保存法所应用的共同原理。根据食物保存法所应用的原理,哪项代表X是正确的?
减少水分
改变酸度
降低温度
隔绝空气
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
哪种方法适合用来保存上述的食物?
上蜡
腌渍
冷冻
干藏
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
为什么上述的食物保存法能使食物耐久?
食物里没有水分
食物里的营养已被破坏
食物的表面与空气隔绝了
食物里的细菌被阳光杀灭了
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
上图显示腌渍黄瓜的一个步骤。哪项是醋的主要用途?
使黄瓜保持新鲜
增加黄瓜的营养成分
使黄瓜更加美味可口
改变酸度,使微生物无法生存
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪种食物保存法的处理没有涉及高温杀菌的过程?
煮沸
盐腌
巴氏杀菌法
装罐和装瓶
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
上图显示一种保存食物的方法。这种保存食物的方法包括以下哪项处理过程?
熏干后密封
抽出空气后密封
晒干、充气后密封
高温煮沸、抽出空气后密封
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