A.darkening，growing in size and forming an anvil top
B.that shows extensive vertical development
C.creating cold downdrafts that are felt on the ground
D.All of the above
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A.administer oxygen
B.immediately check his pulse and start CPR
C.make the victim comfortable in a bunk
D.immediately give a stimulant，by force if necessary
A.longitudinally framed
B.transversely framed
C.cellular framed
D.web framed
A.lower spring buoys into the water
B.find an anchor after the buoy has been lost
C.transfer a pennant wire to the anchor handling boat
D.clean chain as it is hauled into the rig
A.a companion way
B.'tween-decks
C.stairs
D.Any of the above are acceptable
A.lifts
B.collars
C.elevators
D.clamps
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