You are proceeding to a distress site．The survivors are in liferafts.What will make your ship more visible to the survivors（）. ["Steering a sinuous course","Steering a zig-zag course","Turning on all available deck lights at night","Dumping debris over the side to make a trail to your vessel"]
第一、二次国内革命战争时期，革命根据地设立（），以行使管理市场、稳定市场和打击投机商人的职责。 ["贸易局","粮食调剂局","工商局","财政经济部"]
80年代后期，李达三在海外开辟第二战场，向酒店业进军，在不到10年时间内，（）酒店集团在世界各地新建、收购了7家高水平的酒店。李达三一跃成为闻名遐迩的酒店业巨子。 ["希尔顿","卡尔顿","郁金香","香格里拉"]
总行销售管理部门于接受产品成立公告或者产品成立失败公告之日起（）工作日内，对外进行披露。 ["一个","三个","五个","六个"]
You are approaching another vessel and see that it has the signal flag “O” hoisted．What is your next action（）. ["Proceed on present course and speed since the vessel is requesting a pilot","Attempt to call the vessel on VHF radiotelephone and begin a search because the vessel has a man overboard","Attempt to call the vessel on VHF radiotelephone because it is disabled","Approach with caution because the vessel is stopped and making no way through the water"]
喜歌剧的基本特征是什么？它在意大利和法国有哪些主要作曲家及作品？
