单项选择题
A.the running hours of the cooling water pump
B.chief engineer’s order
C.the main parameters of main and auxiliary equipment
D.the position of the vessel
单项选择题 During the watch keeping at sea, routine adjustments should be （）
单项选择题 During the watch keeping at sea, at appropriate intervals inspection should be made of （）, auxiliary machinery and steering gear spaces by the duty engineer.
单项选择题 The ground terminal of a starter should be connected to （）