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五下自然第三四單元

Authored by 吳俊德 吳俊德

Science

5th Grade

Used 1+ times

五下自然第三四單元
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59 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

讓鐵製品保持潮溼,是一種防鏽的好方法。

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

小雞是從雞蛋孵化出來的,只有經受精作用的卵,才能孵化出小雞。

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

將籃球架的籃框和支架塗上油漆,是為了隔絕鐵和水、空氣接觸的機會,達到防鏽的目的。

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

美工刀刀片放在空氣中一段時間後,可能會出現生鏽現象。

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在鐵欄杆表面塗上油漆,除了美觀以外沒有其他作用。

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

成群的蜜蜂在飛行時,常會觸碰彼此的觸角,藉此傳遞訊息。

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

生鏽的鐵製品,表面會產生褐色的物質,而且摸起來粗粗的。

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