单选题It is important with all hydraulic systems to ensure that interlocking arrangements provided for pump or motor control levers are （） before the pump driving motor can be started.Ain the pert positionBin the starboard positionCin the neutral positionDto be dismantled
单选题
It is important with all hydraulic systems to ensure that interlocking arrangements provided for pump or motor control levers are （） before the pump driving motor can be started.
A
in the pert position
B
in the starboard position
C
in the neutral position
D
to be dismantled
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