用电与安全常识手册(Handbook of Electrical and Safety Knowledge)

ebook

By 郑成刚

cover image of 用电与安全常识手册(Handbook of Electrical and Safety Knowledge)

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中小学生的人身安全是关系家庭、学校和社会稳定的一件大事。中小学生作为一个特殊的群体,他们的健康成长涉及千家万户,保护中小学生的安全是我们全社会的共同责任。 ( The personal safety of primary and middle school students is a major event related to the stability of family, school and society. Primary and secondary school students as a special group, their healthy growth is involved in millions of households, so protecting the safety of primary and secondary school students is our common responsibility of the whole society.)

用电与安全常识手册(Handbook of Electrical and Safety Knowledge)