问题
单项选择题
Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is（）.
A.list
B.heel
C.trim
D.flotation
答案
参考答案：A
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Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is（）.
A.list
B.heel
C.trim
D.flotation
参考答案：A