“三同时”制度规定,工程项目在进行可行性研究论证时,必须进行()的论证。
A.安全生产管理
B.安全技术措施
C.生产辅助设施
D.职业健康安全
参考答案:D
(2013·苏南四校3月联考)Everybody knows about it now! But no one knows ________ once prevented the rumor from spreading.
A.what was it that
B.what it was that
C.how it was that
D.why it was that
公路供配电系统由()、变配电所、低压配电箱、供配电线路、接地系统等构成。
A.10kV电源线路
B.柴油发电机组
C.灯具
D.低压配电线