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6下自然2-2

Authored by Anonymous Anonymous

Physics

6th Grade

6下自然2-2
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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

水會讓鐵製品生鏽,因此保持乾燥可以延長鐵製品的使用期限。

O
X

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

為了讓鐵製品不容易生鏽,應避免鐵製品時常接觸水和空氣。

O
X

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

鐵欄杆生鏽後,會使鐵欄杆結構變得脆弱,容易影響使用者的安全。

O
X

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

生鏽的鐵製品結構會變得脆弱,會影響使用上的安全。

O
X

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

防止鐵製品生鏽最簡單的方法就是保持潮溼。

O
X

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

鐵窗、鐵門每隔一段時間就要重新塗油漆,才能有效的防鏽。

O
X

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

只要將鐵製品隔絕水,就可以達到防鏽的目的了。

O
X

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