单项选择题
A.forward perpendicular
B.amidships
C.longitudinal center of floatation
D.after perpendicular
单项选择题 In a transversely framed ship，the transverse frames are supported by all of the following EXCEPT（）.
单项选择题 In a longitudinally-framed ship，the longitudinal frames are held in place and supported by athwartship members called（）.
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.