【单选题】What's the full spelling of "ECMO"?
A.
Extra Membrane Oxygenation
B.
Extra-corporeal Membrane Oxygenation
C.
Extra-corporeal Oxygen
【简答题】the whole spelling of CRA is ( ); the full spelling of CRC is ( )
【单选题】What is the full spelling of the abbreviation’MSC’?
A.
Maritime Safety Communication
B.
Marine Safety Committee
C.
Maritime safety committee
D.
Mobile Safety Communication
【多选题】下列用户的电子邮件地址中,错误的是( )。
【判断题】“海里”是计量海上距离的长度单位,1海里等于1.852公里。()