單項選擇題

Which action（s）is/are included in crane operations（）.

A.Normal boom stowage and shutdown operations
B.Emergency shutdown operation
C.Removing booms from stowage
D.All of the above

你可能感興趣的試題

單項選擇題

What is a“Special Warning”（）.

A.An urgent message concerning a vessel in distress
B.A weather advisory about unusual meteorological or oceanographic phenomena hazardous to vessels
C.A broadcast disseminating an official government proclamation affecting shipping
D.A radio navigational warning concerning a particularly hazardous condition affecting navigation

單項選擇題

What form of ice is of land origin（）.

A.Shuga
B.Floe
C.Spicule
D.Bergy bit

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

Which action（s）is/are included in crane operations（）.

你可能感興趣的試題

What is a“Special Warning”（）.

What form of ice is of land origin（）.