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完形填空专项训练一 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 Where Did All the Ships Go? The Bermuda Triangle is one the greatest mysteries of the sea. In this triangular area between Florida, Puerto Rico and Bermuda in Atlantic, ships and airplanes to disappear more often than in parts of the ocean. And they do so leaving any sign of an accident or any dead bodies. It is that Christopher Columbus was the first person to record strange happenings in the area. His compass stopped working, a flame came down from the sky, and a wave 100 to 200-feet-high carried his ship about a mile away. The most famous disappearance in the Bermuda Triangle was the US Naval Air Flight 19. December 5, 1945, five bomber planes carrying 14 men on a training mission from the Florida coast. Later that day, all communications with Flight 19 were lost. They just disappeared without a trace. The next morning, 242 planes and 19 ships took part in the largest air-sea search in history. But they found nothing. Some people blame the disappearances supernatural forces. It is suggested the ships and planes were either transported to other times and places, kidnapped by aliens attacked by sea creatures. There are natural explanations, though. The US Navy says that the Bermuda Triangle is one of two places on earth a magnetic compass points towards true north magnetic north. | 
