A.negative GM B.progressive flooding C.structural failure D.an immediate need to counterflood
A.turning the victim's head to the side to keep his airway open B.positioning the victim so the head is lower than the body C.giving the victim water if he is thirsty,but no food D.elevating the head and shoulders slightly with a pillow
A.Factor of safety B.Number of wires per strand C.Number of strands per wire rope D.Number of wires in the core