单项选择题
Especially in adverse weather，risk of collision with an offshore supply vessel increases when the vessel is moored to what side of the unit?（）.
A.Upwind B.Downwind C.Crosswind D.Downcurrent
单项选择题 Early indications of the approach of a hurricane may be all of the following EXCEPT（）.
单项选择题 Cirrus clouds are composed primarily of（）.
单项选择题 An aneroid barometer reading should be corrected for differences in（）.
