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设|A|是四阶行列式，且|A|=-2，则||A|A|=( )．
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心烦失眠，身热，面红，口渴，便秘，尿黄，舌尖红绛，苔黄，脉数有力，证属（）
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在上尿路梗阻时，评价梗阻程度主要看肾图的哪项指标（）。
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列车自动保护系统（ATP）子系统的主要功能是什么？
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Dinner,for English people,is the richest meal of the day and is a very formal meal.Many people even wear special clothes for dinner,so if you are asked out to dinner you must find out whether you are expected to wear a dinner suit,for you would feel very upset if,when you get there,you were the only person in ordinary clothes.Dinner is generally served at about half past seven.All the members of the family sit down together and eat on their best behavior.The head of the family sits at one end of the table,his wife sits at the other end.If there is a guest,he generally sits in the place of honor,which is at the fight of the lady of the house.If there are several guests,the most important is asked to sit there.When the meal conversation is carried on,you should try to get in conversation with the person on your right or left,but you should not try to talk to someone who is a long way from you.
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羊毛衫造型要素包含：（）、（）、（）、（）四个方面。
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急性化脓性骨髓炎发病后2周内X线片上可见（）
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在等待期内的每个资产负债表日，不正确的会计处理方法是。
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标准型21-三体综合征的再发风险为______，女性患者中少数有生育能力的，子代发病概率为________。若母亲为21q21q易位携带者，其风险率为______。
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内吞