单项选择题
A.The period of time in which the set point and the control point coincide
B.The periodic change between the set point and the control point
C.The variable difference between the set point and the control point
D.The constant difference between the set point and the control point
单项选择题 ‘Offset’ is an inherent characteristic of which of the follow types of control modes?（）
单项选择题 The ship security officer shall have knowledge and have received training, taking into account the guidance given in Part B of （）
单项选择题 The records of ship security training, drills and exercises shall be kept in the working language or languages of the shipIf the language or languages used are not（）, a translation into one of these languages shall be included.