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非蛋白性凝血因子（）
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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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二手数据的时效性优于原始数据。()
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能对抗原特异性识别的细胞有（）
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近期，社区工作者为提高社区青少年整体素质，开展了以"如何成为一个有责任的人"为主题的社区讲座活动。从社区教育的功能角度看，该活动属于（）。
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克仑特罗的药理作用是 （ ）
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在使用标准仪表和工具表时，首选要选择测量（），然后选择（），绝不能在（）或（）测量（）。
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纵隔按四区划分法，沿胸骨角至第4胸椎下缘画一横线，其上为上纵隔，其下为下纵隔。有关对其解剖特点的描述，下列正确的是（）。
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导尿术操作方法导尿术可分为男性导尿和女性导尿。
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什么情况下出具定量包装商品净含量检验报告？对定量包装商品净含量检验报告的要求是什么？