• In the instruction of industry and civil, hotel, grogshop, library, the department of scientific research and trade, the fire alarm system has become the necessary installation.

    工业民用建筑、宾馆、酒店、图书馆科研商业部门火灾报警系统成为必要的装置

    youdao

  • The Institute of Curriculum and Instruction, Department of Education Information Technology, East China Normal University;

    华东师范大学教育学部课程教学研究所教育信息技术学系

    youdao

  • The Institute of Curriculum and Instruction, Department of Education Information Technology, East China Normal University;

    华东师范大学教育学部课程教学研究所教育信息技术学系

    youdao

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