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六年级科学

Other, Other Sciences

6th Grade

Used 42+ times

六年级科学
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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪个光的特征造成月食和日食?

光沿着直线传播
光会反射
光会折射

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪个保存法把食物与空气隔绝?

干藏
上蜡
盐腌

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

酱油的制作需要哪种微生物?

真菌
细菌
病毒

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪项活动涉及拉力和推力?

抽出纸巾
进行拔河比赛
用锯子锯木板

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪个是不可生物降解的废料?

纸张
蛋壳
玻璃瓶

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

灯泡使用哪种简单机械?

轮轴
螺旋
尖劈

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

一名农人在菜园里把蔬菜周围的野草拔掉。
为什么他要这么做?

减少害虫
使蔬菜获得充足的养分
空出的地方能种更多蔬菜

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