已探明我国炼焦煤贮量最多的地区是()。
A.华北区
B.东北区
C.中南区
D.西北区
参考答案:A
应急响应是根据(),明确应急指挥、应急行动、资源调配、应急避险、扩大应急等响应程序。
A.事故的性质
B.本单位技术水平
C.本单位人员素质
D.事故的大小和发展态势
Which mooring line prevents sideways motion of a vessel moored to a pier().
A.A line led forward from the bow
B.A line led aft from the bow
C.A line led in the same direction as the keel
D.A line led at a right angle to the keel