单项选择题 When clearing customs for a foreign voyage，which of the following is processed at the custom’s house and returned to the vessel（）.

单项选择题 According to the Maritime Safety Traffic Law of the People’s Republic of China，which administrative organ in China is in charge of issuing the Certificate of Vessel’s Nationality（）.

单项选择题 Any vessel that does not have the necessary certificates on board will （） the Panama Canal．