GIVE DISTRESS SIGNALS FOR IDENTIFICATION.的意思是：发出遇险求救信号。
单选题The distress alert should（）the ship in distress.A identityB identicalC identifyD identification
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单选题All of the following are distress signals under the Rules EXCEPT（）.A International Code Signal AAB orange-colored smokeC red flaresD the repeated raising and lowering of outstretched arms
单选题All of the following are recognized distress signals under the Navigation Rules EXCEPT（）.A a green star signalB orange-colored smokeC red flaresD the repeated raising and lowering of outstretched arms
单选题The basic concept of GMDSS is（）.A Search and rescue authorities ashore will rapidly received an distress alert and acted uponB SAR units will be rapidly alerted to a distress incident and assist in a coordinated SAR operationC Ships navigating in the immediate vicinity of the ship in distress will rapidly alerted to the alert and give their help accordinglyD The RCC will rapidly alerted to a distress alert through satellite and terrestrial communication techniques and conducted a rescue operation immediately
单选题Distress signals may be（）.A red flaresB smoke signalsC sound signalsD Any of the above
单选题The service life of distress signals must be not more than（）.A forty two months from the date of manufactureB thirty six months from the date of the last inspectionC twenty four months from the date of approvalD twelve months from the date of purchase
单选题On every vessel，distress signals must be stowed（）.A on or near the navigating bridgeB on the flying bridge not closer than 15 feet to any bulkheadC above the freeboard deck away from heatD in an enclosed space below the freeboard deck away from heat
