b) Ít nh?t b?ng 12 l?n m?c l??ng c? s? cho h?c sinh, sinh viên b? suy gi?m kh? n?ng lao ??ng t? 81% tr? lên ho?c cho thân nhân h?c sinh, sinh viên b? ch?t do tai n?n lao ??ng;b) Use and storage of non-public security products, products of fire avoidance and combating, important prescription drugs and first-help amenities in position;b) When n