單項(xiàng)選擇題If,during helicopter refueling operations,fuel is spilled on clothing,the person should first（）.

A.see the medic immediately
B.spray hinself with foam or CO
C.complete his task and then see medic
D.remove the clothing and wash


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1.單項(xiàng)選擇題In 1978,21989 vessels,including warships（）through the Suez Canal.

A.passed
B.passes
C.pass
D.past

2.單項(xiàng)選擇題In a married falls rig at the after end of a hatch , a boom is rigged in a fore and aft line through its heel . Stresses on the outboard guy will be least if the guy is made fast at a point（）.

A.abreast the heel
B.at right angles to the boom when viewed from above
C.aft of the heel
D.forward of the spiderband

3.單項(xiàng)選擇題In a twin screw ship going half-ahead , both screws turning outboard and the rudder amidships,no current or wind,the vessel will（）.

A.move bodily to port
B.move bodily to starboard
C.move in a zig-zag motion
D.steer a fairly straight course

4.單項(xiàng)選擇題In case of accidents（）the risk of sinking,all effective measures shall be taken to steer clear of the fairway to avoid（）the traffic.

A.involving/impeding
B.involved/to impede
C.involving/to impede
D.involved/impeding

5.單項(xiàng)選擇題In each inflatable rescue boat , what piece of equipment is provided to make quick , emergency,temporary repairs to a large hole in a raft?（）.

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