问题
单项选择题
A vessel’s bottom will be subjected to tension when weight is concentrated（）.
A.amidships
B.aft
C.at both ends of the vesel
D.forward
答案
参考答案：A
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A vessel’s bottom will be subjected to tension when weight is concentrated（）.
A.amidships
B.aft
C.at both ends of the vesel
D.forward
参考答案：A