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粉笔教具是目前教学的必备工具,用它来传授知识,从其应用到现在已有几百年的历史了。然而,粉笔在给人类教育事业做出巨大贡献的同时,也给从事教育事业的教师及学生的身体健康带来极大的危害。随着人们对健康和环保生活的渴求,营造一个健康、优美的绿色教学环境不仅是广大师生梦寐以求的愿望,更成了社会各界共同关注的议题。抓住需求,就是抓住了商机。为了使
Chalk teaching aids is an indispensable tool for teaching at present. It is used to impart knowledge, and has been used for centuries now. However, while making great contribution to the cause of human education, it has also brought tremendous harm to the health of teachers and students engaged in education. With people’s thirst for health and environmental protection, creating a healthy and graceful green teaching environment is not only the desire of teachers and students to dream, but also a topic of common concern in the community. Seize the demand, is to seize the business opportunities. because