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四年级科学练习67(复杂机械)

Authored by LIEW Moe

Science

4th Grade

Used 29+ times

四年级科学练习67(复杂机械)
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10 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

自行车是由哪种简单机械组成?(答案有四个)

轮轴

齿轮

杠杆

螺旋

尖劈

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

剪刀是由哪种简单机械组成?(答案有两个)

轮轴

齿轮

杠杆

螺旋

尖劈

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

手摇钻是由哪种简单机械组成?(答案有三个)

斜面

齿轮

轮轴

螺旋

尖劈

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

手推车是由哪种简单机械组成?(答案有三个)

斜面

齿轮

轮轴

螺旋

杠杆

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

起重机是由哪种简单机械组成?(答案有三个)

斜面

齿轮

轮轴

滑轮

杠杆

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

钓鱼竿是由哪种简单机械组成?(答案有两个)

斜面

齿轮

轮轴

滑轮

杠杆

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

铅笔刨是由哪种简单机械组成?(答案有两个)

尖劈

齿轮

轮轴

滑轮

杠杆

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