You are proceeding to a distress site. The survivors are in liferafts. What will make your ship more visible to the survivors?（）.

单项选择题Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE?（）.

A.CSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedence
B.The CSS must be established by mutual agreement between the ships concerned
C.A tanker should never be assigned CSS duties unless only tankers are present
D.The first vessel to arrive at the distress incident is designated as the CSS

单项选择题Acknowledgement by you of receipt of a distress message from a vessel which，beyond any possible doubt，is not in your vicinity and is a long distance away must be made when（）.

A.Vessels nearer the distress vessel acknowledge receipt
B.Vessels nearer the distress vessel fail to acknowledge receipt
C.Even you have not reveived the distress
D.Even the vessel in distress expressly prohibit you from providing any salvage service

单项选择题If you are transmitting a distress message by radiotelephone you should（）.

A.use English language
B.always use the International Code
C.preface it by the word SOS
D.follow the transmission with the radio alarm signal

单项选择题A person who sees someone fall overboard should（）.

A.call for help and keep the individual in sight
B.run to the radio room to send an emergency message
C.immediately jump in the water to assist the individual
D.go to the bridge to report the captain

单项选择题（）is the most visible signal of distress from a lifeboat at sea in the daytime.

A.Smoke signal
B.Flash signal
C.Fire signal
D.Radio emergency transmission