单项选择题
A vessel’s KG is determined by（）.
A. dividing the total longitudinal moment summation by displacement B.dividing the total vertical moment summation by displacement C.multiplying the MT1 by the longitudinal moments D.subtracting LCF from LCB
单项选择题 All of the following can be determined by use of a stabilogauge EXCEPT（）.
单项选择题 An unstable upright equilibrium position on a vessel means that the metacenter is（）.
单项选择题 An upright vessel has negative GM. GM becomes positive at the angle of loll because the（）.
