an off-center TCG
an LCG greater than level vessel LCB
a negative GM
excessive free surfaces
第1题：
The African way of communication sent messages______.
A. in a special way
B. over a very short distance
C. by a musical instrument
D. at a rather slow speed
53．答案为C 鼓为一种乐器，所以本题答案为C。
第2题：
Movement of liquid in a tank when a vessel inclines causes an increase in ______．
A.Righting arm
B.Metacentric height
C.Height of the uncorrected KG
D.Natural rolling period
第3题：
A.go on
B.supports
C.lasts
D.uses
第4题：
Excessive pitching
Excessive yawing
Excessive rolling
No change should be evident
第5题：
第6题：
A semisubmersible rig under tow should be ballasted down if ______.
A.motion begins to be excessive
B.water begins to break over the pontoons
C.period of roll exceeds 12 seconds
D.forward progress is halted by head wind
第7题：
第8题：
According to the passage, the earth in its very early period was ______.
A. in molten state
B. in water state
C. in rock state
D. a vast ocean
42．答案为A。根据第一段第二、三句，the earth at some time in its very early history became hot enough to melt the materials from which it was formed。While in this molten state作出该项选择。
第9题：
第10题：
press up a slack double bottom tank on the port side
fill an empty centerline double bottom tank
pump out a slack marine portable tank located on the portside amidships
jettison the anchors and anchor cables