【单项选择题】
According to the regulations for life boat falls,which action must be taken at 30-month intervals?()
A、A.End-for-ended
B、B.Renewed
C、C.Inspected
D、D.Weight tested
A、A.End-for-ended
B、B.Renewed
C、C.Inspected
D、D.Weight tested
A、be treated according to the C-Es command exactly B、be treated according to MARPOL C、accumulate in bilges or on tank tops in accordance with MARPOL D、discharge to sea at the specified areas
A、they are used B、the field windings are connected to the load C、the armature circuit is connected to the load D、the field windings are connected to the armature circuit