四年级设计与工艺 单元一
Authored by YEOH Moe
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4th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
选出正确的安全标志
当心爆炸
当心中毒
当心腐蚀
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中标志的含义是
当心触电
当心泄漏
当心滑跌
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中标志的含义是
当心触电
当心泄漏
当心滑跌
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中标志的含义是
含有毒气体
爆炸物品
易燃物品
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中标志的含义是
禁止进入
禁止奔跑
禁止吸烟
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中标志的含义是
含有毒气体
爆炸物品
易燃物品
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中标志的含义是
不可进入
注意安全
当心滑跌
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