【单选题】A centrifuge will satisfactorily remove which of the following contaminants from fuel oil?
【判断题】每个人都是在提供服务的同时享受着他人提供的服务,从一定意义上说,工作就是人与人之间的相互服务。( )
【简答题】Meeting people from different cultures helps one remove ______.
【单选题】If a person is unconscious from electric shock,you should first remove him from the electrical source and then ______.
A.
administer ammonia smelling salts
B.
check for serious burns on the body
C.
determine if he is breathing
D.
massage vigorously to restore circulation