Congress first dealt with issues of safety and health in the workplace in 1890, when legislation was passed for safety standards in coal mines.

 
  • 1890年國會(huì )開(kāi)始著(zhù)手討論工作場(chǎng)所的安全與健康問(wèn)題,并通過(guò)了煤礦作業(yè)安全標準的法律。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan