问题
单项选择题
The average of the forward and after drafts is the().
A.mean draft
B.true mean draft
C.mean of the calculated drafts
D.draft at the center of flotation
答案
参考答案:A
The average of the forward and after drafts is the().
A.mean draft
B.true mean draft
C.mean of the calculated drafts
D.draft at the center of flotation
参考答案:A