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2年级科学 电

2年级科学 电

Assessment

Interactive Video

Science

2nd Grade

Practice Problem

Hard

Created by

CHING KPM-Guru

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

什么东西让灯泡亮起来,让风扇转动?

魔法

2.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

您喜欢这个视频课程吗?

是的

不是

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

一个完整的电路至少需要哪些元件?

干电池、开关和灯泡

只有干电池和灯泡

只有开关和灯泡

只有干电池和开关

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如果灯泡不亮,可能是什么原因?

干电池电量耗尽

灯丝烧坏

开关没有按下

以上都是

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪种材料是电的绝缘体?

橡胶

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