The full title of the U.K. is the United Kingdom of （）and （）
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零点极点 (z ero and pole)
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已知X=21，Y=15，Z=22，计算表达式（（X>Y）or（Y>Z））and（（X
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public and private colleges and universities and community colleges offer（）.
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营养诊断施肥 diagnosis nutrient and fertilization
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盐碱土（saline and alkaline soil）
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测土施肥 soil testing and fertilizer recommendation
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硝铵态氮肥 ammonium and nitrate nitrogen fertilizer
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（）is used for calling and replying,and for transmitting acknowleding and relaying distress alerts.
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