单项选择题
When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear（）.
A.Non-follow-up B.Rudder adjustment C.Weather adjustment D.All the above may be activated
单项选择题 When observing a rapid rise in barometric pressure，you may expect（）.
单项选择题 When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.
单项选择题 When a high pressure system is centered north of your vessel in the Northern Hemisphere（）.
