
六年级科学
Other, Other Sciences
6th Grade
Used 42+ times

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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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