All the following except（）are fittings for securing and lashing containers on board ships.

A . Three vessels meeting so as to cross each other's course B . A vessel meeting a vessel that is backing out of a slip C . An overtaking situation that has reached in extremis D . A vessel fishing with nets meeting a sailing vessel

A . International Code Signal "AA" B . orange-colored smoke C . red flares D . the repeated raising and lowering of outstretched arm

A . A vessel trawling B . A vessel trolling C . A vessel setting nets D . A vessel tending line

A . A、automation procurement B . B、automation sales C . C、automation marketing D . D、automation customer service

A . electricity B . fuel C . oxygen D . heat

A . in many places a counter current flows in opposition to the main current close to the bank B . current can vary with depth of water and large deep draught ships can experience different current effects at differing parts of the hull tend to turn to the wind C . as speed is reduced，the increased proportion of the ship's vector which is attributable to current will set the ship close to obstructions D . when close to the berth in a head current，there is a danger that flow inshore of the ship becomes restricted and the ship is subject to interactive force

A . fuel B . oxygen C . heat D . electricity

A . a green star signal B . orange-colored smoke C . red flares D . the repeated raising and lowering of outstretched arm

A . steady rainfall B . hail storms C . thunderstorms D . tornadoes or waterspout

A . I intend to meet you starboard to starboard B . I do not intend to hold course and speed C . I intend to overtake you on your port side D . I intend to alter my course to port

A . removing heat and deposits B . neutralizing acidic products C . lubricating D . improving combustion efficiency

A . the continuous sounding of any fog signal apparatus B . giving five or more short and rapid blasts of the whistle C . firing a gun at intervals of about a minute D . a barrel with burning oil in it，on deck

A . nfsd B . ftpd C . telnetd D . pop3d

A. below-normal rainfall B. difficult navigation C. a sharp drop in oyster harvest D. bone-dry hills

A．foods from the soil are lack of vitamins nowadays B．processed foods tend to lose vitamins in making process C．unbalanced food can't keep children in good shape D．some elements of vitamin can never been obtained from natural foods 此题为多项选择题。