雾中主机故障的失去控制的船舶,不对水移动时应鸣放:()
A.两长声
B.一短一长一短
C.一长声
D.一长两短
参考答案:D
It is said that sixty percent of all energy ________ in the world today is being lost as wasted heat.
A.produced
B.producing
C.to produce
D.having produced
人事行政的基本功能是()
A.为社会事业的发展提供专门人才
B.为经济发展提供人才及人才储备
C.为社区管理提供合格人才
D.为巩固 * * 和实施行政管理提供人事保证