當槓桿左端懸掛的重物重量減少而右端施力大小不改變時,要怎麼做才能使裝置保持平衡呢?
6下自然 期末

Quiz
•
Science
•
6th Grade
•
Easy
Wilson Chiu
Used 1+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
將施力點向右移動
將施力點向左移動
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
發霉的原因為下列何者?
缺乏氧氣
潮濕環境
溫度過低
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
微生物是群形態較小,通常需要透過顯微鏡才能清楚看見微細構造的生物,例如:細菌、乳酸菌、黴菌等。不是每一種微生物都是有害的,生活中有些食物是利用微生物製作的,例如:醬油、豆腐乳、優酪乳、乳酸飲料等。
O
X
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
食物被微生物分解後,對人體有害、無法食用,以及對人體無害、可以食用,分別稱為__和__。
發酵和腐壞
腐敗和發霉
腐壞和發酵
5.
FILL IN THE BLANK QUESTION
20 sec • 5 pts
酵母菌也會分解醣類產生____和__,是製作麵包和釀酒必需的微生物。
6.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
以下何者為食物的保存方法?
低溫冷藏
真空包裝
醃漬
乾燥
置入脫氧劑
7.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
食品添加物攝取過多的風險為?
引起過敏
得皮膚炎
導致癌症
破壞免疫細胞
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