单项选择题 According to Gencon，if at any time during the currency of this Charter，both Owners and Charterers are unable to arrange bunkers at the main bunkering ports for the voyage in question，the（）to have the privilege of canceling this Charter.

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 charter-party usually contains a clause stating that the master is to be under the orders of the（）as regards employment，agency or other arrangements.