题目内容：
Where Did All the Ships Go The Bermuda Triangle （三角区） is one_____（51） the greatest mysteries of the sea. In this triangular area between Florida, Puerto Rico and Bermuda in Atlantic, ships and airplanes_____（52） to disappear more often than in_____（53） parts of the ocean. And they do so_____（54） leaving any sign of an accident or any dead bodies.It is_____（55） 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 （海军的） Air Flight 19._____（56） December 5, 1945, five bomber planes carrying 14 men （57） 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_____（58） supernatural （超自然的） forces. It is suggested the_____（59） ships and planes were either transported to other times and places, kidnapped （绑架） by aliens （外星人）_____（60） attacked by sea creatures.
There are_____（61） natural explanations, though. The US Navy says that the Bermuda Triangle is one of two places on earth_____（62） a magnetic compass （指南针） points towards true north_____（63） magnetic north._____（64）, planes and ships can lose their way if they don't make adjustments.
The area also has changing weather and is known_____（65） its high waves. Storms can turn up suddenly and destroy a plane or ship. Fast currents could then sweep away any trace of an accident. A．from
B．of
C．about
D．on
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