正确答案: C
救助艇在入水时解脱吊钩后再解脱艇首缆
题目:救助艇在降放入水操作时要注意()
解析:C
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[单选题]What is defined as and area, excluding sea areas A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available?
Sea Area A3
[单选题]对装有可使用雷达的船舶在决定安全航速时应考虑()。Ⅰ.雷达设备的特性、效率和局限性;Ⅱ.所选用的雷达距离标尺带来的限制;Ⅲ.天气对雷达精度的影响;Ⅳ.雷达对小物标探测不到的可能性。
Ⅰ~Ⅳ