A distress signal（）.

A . red star shell B . searchlight C . burning barrel D . orange smoke signal

A . red star shell B . searchlight C . burning barrel D . orange smoke signal

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

A . horizontally and directly abeam of your vessel B . at the vessel whose attention you want to attract C . into the wind D . at greater than 60 degrees above the horizo

A . A continuous sounding with any fog signal apparatus B . A signal sent by radiotelephone consisting of the spoken word "Mayday" C . An International Code Signal of N.C. D . The firing of green star rockets or shell

A . Roger wilco B . Romeo，romeo，romeo C . SOS acknowledged D . Mayday roger

A . COSPAS-SARSAT B . ground receiving stations C . storing distress signal D . Near polar orbiting satellite

A . Red flares or red rockets B . Continuous sounding of fog signaling apparatus C . International Code Flags "November" and "Charlie" D . Basket hanging in the rigging

A . fire a green star to the left B . send the letter K by light and point to the left C . place an orange signal to your left as you signal with a white light D . send the code signal S followed by L

A . SOS three times B . Additional transmissions to aid direction finding C . E for one minute，followed by T for one minute D . Two tones，10-15 seconds each

A . straight overhead B . at the vessel whose attention you are trying to get C . into the wind D . about 60 degrees above the horizo

A . distress position B . spoken words "Mayday，Mayday，Mayday" C . ship's name D . ship's call letter

A . consists of 5 or more short blasts of the fog signal apparatus B . may be used separately or with other distress signals C . consists of the raising and lowering of a large white flag D . is used to indicate doubt about another vessel's intentio

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 . Smoke signal B . Flash signal C . Fire signal D . Radio emergency transmissio

A . Help，Help，Help B . Mayday，Mayday，Mayday C . Save，Save，Save D . Rescue，Rescue，Rescue

A . Red flares or red rockets B . Continuous sounding of fog signaling apparatus C . International Code Flags November and Charlie D . Basket hanging in the rigging

A . 10 minutes B . 1 minute C . 1 hour D . 3 minute

A . 正确 B . 错误