单项选择题
A.floors
B.margin plates
C.stringers
D.web frames
单项选择题 I hereby()you,on behalf of the Loocki Grain Co.,Lisbon,to pay to the Harbor Master of the Santa Marta,Columbia,the sum of 500,000 Peso which represents a fine levied on the above-named vessel for polluting the coastal waters with oily water.
单项选择题 I()rather not shift the rice to Hatch No.2.
单项选择题 For cargoes()grain meals,coal,ventilation is needed to prevent them()spontaneous combustion.