Though the United States Navy maintains one of the largest fleets in the world, with craft stationed across the globe, they rarely deploy more than half of all available ships at any given time.
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Athey rarely deploy
分析该选项
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Bthey have rarely deployed
分析该选项
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Crarely it has deployed
分析该选项
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Dit rarely deploys
分析该选项
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Eit is rarely deploying
分析该选项
显示答案
正确答案: D