The overturning forces encountered in the course of its operations may arise from _______________.(1.0)
A.weather B.tow line C.abrupt change of course D.all of the above正确答案D
The overturning forces encountered in the course of its operations may arise from _______________.(1.0)
A.weather B.tow line C.abrupt change of course D.all of the above正确答案D