
6下自然期末難題
Quiz
•
Biology
•
6th Grade
•
Practice Problem
•
Easy
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60 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
導致鐵製品生鏽的原因為水分及空氣,如果隔絕兩者就能有效的防止生鏽。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用剩的鐵釘可以用密封的瓶罐裝起來,減少鐵釘與空氣接觸,以防止生鏽。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鐵製品生鏽後,外表會出現一層鐵鏽,鐵鏽具有防水的功能,因此鐵製品內部不會再繼續生鏽。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在空氣較潮溼的國家,室外的鐵製品若沒有做好防鏽的措施,鐵製品會非常容易生鏽。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
大部分細菌、微生物生長時需要空氣,如果將食物保存於真空的環境中,可延長保存期限。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
我們常可以在食品包裝中看到脫氧劑保鮮包,其功能是讓食物脫水,避免黴菌孳生。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將兩塊沾溼的土司分別放在餐桌上及冰箱中三天後,冰箱中的土司會先發霉。
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