单选题某轮漂流,船上相对计程仪改正率△L=0%,海区内有流,流速2kn,1h后计程航程为()A0′.0B+2′.0C-2′.0D视海区内风、流方向而定
单选题
某轮漂流,船上相对计程仪改正率△L=0%,海区内有流,流速2kn,1h后计程航程为()
A
0′.0
B
+2′.0
C
-2′.0
D
视海区内风、流方向而定
参考解析
解析:
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