问题
单项选择题
When steering by autopilot,how often should the steering be checked?（）
A.12 times on each watch
B.When time allows
C.At least once a watch
D.No checking is necessary
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
When steering by autopilot,how often should the steering be checked?（）
A.12 times on each watch
B.When time allows
C.At least once a watch
D.No checking is necessary
参考答案：C
