How should signal flares be used after you have abandoned ship and are adrift in a liferaft?（）.
1、How should you signal the crane operat
How should you signal the crane operator to lower the boom and raise the load（）.AExtend arm and point finger in the direction to move the ...
2、How should you signal the crane operat
How should you signal the crane operator to dog everthing?（）.APlace both fists in front of the body with the thumbs pointing outward each ot...
3、How should you signal the crane operat
How should you signal the crane operator to raise the boom and lower the load?（）.AExtend arm with the palm down and and hold this position...
4、How should you signal the crane operat
How should you signal the crane operator to lower the boom and raise the load?（）.AExtend arm and point finger in the direction to move the...
5、How should arouter that is being used
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）...
6、How should you signal the crane operat
How should you signal the crane operator to stop in an emergency?（）AExtend arm with the palm down and hold this position rigidlyBPlace claspe...