【单选题】根据作业场所的实际情况,在有较大危险因素的作业场所和设施上,设置明显的安全警示标志,进行危险提示、警示,告知()、后果及应急措施等。
【单选题】( )反映建筑安装企业的施工生产与生产消费之间的数量关系,是建筑安装企业的生产力水平的体现。
【简答题】(20011江苏镇江,9,2分)计算:-(- )=______; =______; ='______;' =_______.
【单选题】Tonyis talking about the friends and the food __________ interest him.
【单选题】(镇江期末) Between 2014 and 2017,courts nationwide ___1.529 cases in which defendants were accused of using the Internet to interfere with a person's privacy.