An inflatable life raft can be launched by（）.

A . It is inflated by a small CO bottle that is automatically tripped when the front zipper is at the top of the zipper track B . It is inflated by a small CO bottle that is manually tripped C . It is inflated by blowing through an inflation tube D . It inflates by sea water bleeding into the flotation bladder and reacting with a chemical therei

A . the single hook at the top of the raft B . two lines passed under the raft C . the towing bridle D . All of the above

A . before you enter the water B . after you enter the water C . after one hour in the water D . after you notice that your suit is losing buoyancy

A . remain in the vicinity of the vessel B . head for the closest land C . head for the closest sea-lanes D . get a majority opinio

A . automatically as the liferaft inflates B . with a switch near the boarding handle C . at night because the light has a photosensitive switch D . by screwing the bulb in after the raft is inflated

A . asphyxiation from CO B . loss of air in the sides of the raft C . rough seas D . cold water temperature

A . to right the raft if it capsizes B . to carry the raft around on deck C . for crewmen to hang on to D . to hang the raft for drying

A . The sea anchor deploys B . The floor inflates C . If upside down，the craft rights itself D . The painter detaches from the raft

A . only after two hours in the water B . only after four hours in the water C . before entry into the water D . upon entry into the water

A . towing bridle B . main weather cover C . external lifelines D . righting stra

A . The sea anchor deploys B . The floor inflates C . If upside down, the craft rights itself D . The painter detaches from the raft

A . No equipment is provided B . Glue and rubber patches C . Several various-sized sealing clamps D . Self-adhesive rubberized canvas patche

A . lifeline B . painter C . drogue D . marker

A . the float-free method ONLY B . breaking the weak link on the painter C . throwing the entire container overboard and then pulling on the operating cord to inflate the raft D . removing the securing stra

A . removing the top half of the shell，cutting the line at its source，and renewing completely B . cutting the line where it enters the case and replacing that portion C . leaving the original line and tying another one to it so the two lines will take the strain D . an approved servicing facility ashore

A . in one of the equipment bags B . in a special pocket near the forward entrance C . on a cord hanging from the canopy D . in a pocket on the first aid kit

A . cutting the straps that enclose the container B . removing the rubber sealing strip from the container C . loosening the turnbuckle on the securing strap D . pushing the button on the hydrostatic release

A . go into place as the raft is inflated B . be put up after everyone is aboard C . be put up only in severe weather D . be used as a sail if the wind is blowing

A . from the water only B . at the deck C . by jumping down onto it D . through the escape tube

A . pulling a cord B . cutting the wire restraining bands C . removing the rubber packing strip D . throwing the entire container overboard

A . lashings on the floor of the raft for the passenger's feet B . straps from the overhead C . lifelines on the inside of the raft D . ridges in the floor of the raft

A . No equipment is provided B . Glue and rubber patches C . Several various-sized sealing clamps D . Self-adhesive rubberized canvas patche