单项选择题
A.The first line at the bottom B.The second line from the bottom C.The third line from the bottom D.The fourth line from the bottom
A.The breath of the tank B.The length of the tank C.The amount of liquid in the tank D.The position of the tank in relation to the center line of the vessel
A.Outside temperature B.Dewpoint of the outside air C.Dewpoint of the air in the cargo hold D.Temperature of the cargp