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（）.

单项选择题 A right to withdraw a vessel（）the service of the Charterers failing the punctual and regular payment of the hire cannot be defeated by later tender of the hire.

单项选择题 A Contract of Affreightment covering the movement of a particular cargo from one designated port to another at a specified rate for each ton of goods loaded is called a（）.