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6下自然U2-2

Authored by Anonymous Anonymous

Physics

6th Grade

Used 1+ times

6下自然U2-2
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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

可以在鐵窗的表面塗上一層油漆以防止生鏽。

O
X

3.

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

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

銅器接觸空氣氧化後,就會在表面上呈現灰白色的物質。

O
X

5.

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

6.

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

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

將鐵製的迴紋針外面再加一層塑膠套包覆,迴紋針就不容易生鏽了。

O
X

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