单选题某轮船速12kn,逆风逆流航行,流速1kn,风使船减速1kn,则1h后船舶对水航程为()。A9nmileB10nmileC11nmileD12nmile

单选题
某轮船速12kn,逆风逆流航行,流速1kn,风使船减速1kn,则1h后船舶对水航程为()。
A

9nmile

B

10nmile

C

11nmile

D

12nmile


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