单项选择题 A vessel is not in every way fitted for cargo service（）at the time of her delivery to the charterers her engine room staff is incompetent and inadequate，and accordingly she is unseaworthy.

单项选择题 A vessel has a charter party for one voyage to carry a full load of manganese from Durban，South Africa，to Baltimore，Maryland，at a stipulated rate per ton. Which type of contract is involved? （）.

单项选择题 A sum of money paid by the Shipowner to Charterer for completing loading or discharging a cargo in less time than that stipulated in Charter Party as laydays．It is（）.