单词：sweep-frequency radar responder beacon
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A New Control of Destiny by Margaret Mead Children used to play a game of pointing at someone, suddenly saying, What are you? Some people answered by saying, I am a human being, or by nationality or by religion. When this question was put to me by a
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Israel's number one emergency responder training company is looking to expand its business into China. The company plans to work with local governments and local communities in China to share its experience in emergency rescue. Yochai Lelior is the f
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beacon, ['bi:kən] n 灯塔（位于海岸，用以导航）；烽火（警告敌人的接近） 【例】Fires beaconed the darkness 火光驱散了黑暗。 【记】bea＝bead珠子，夜明珠，con＝can能。夜明珠能在晚上导航。 烽火
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我相信，人的生命之所以有意义，正是由于其个人树立的目标与他所处的文明、时代和国家之间有着密切的联系。 A New Control Of Destiny Children used to play a game of pointing at someone, suddenly saying, What
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Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us to hear. Scientists analyzed around 2,500 of those calls, and found that the second
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In 1994, when Boeing first published safety data, showing a clear correlation between a country's plane crashes and its score on Hofstede's dimensions, the company's researchers practically tied themselves in knots trying not to draw offense. 1994年，
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