单项选择题
When taking action to avoid collision，you should（）.
A.Make sure the action is taken in enough time B.Not make any large course changes C.Not make any large speed changes D.All of the above
单项选择题 When ship at anchor she shall be deemed to be（）.
单项选择题 When shall the stand-on vessel in a crossing situation take action to avoid the other vessel（）.
单项选择题 When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.
