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单位或个体工商业户()，应视同销售货物征收增值税。
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日龄7天的新生儿，生长发育正常，母乳喂养，进食良好，血清胆红素171μmol／L，余检查正常，应采取的治疗措施是（）。
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高校教师在与学生交往时应遵循的道德规范包括（）
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If the period between twenty and thirty is the critical one in the formation of intellectual and professional habits, the period below twenty is more important still for the fixing of personal habits, properly so called, such as vocalization and pronunciation, gesture, motion, and address. Hardly ever is a language learned after twenty spoken without a foreign accent. Hardly, ever, indeed, can he even learn to dress like a gentleman-born. Hardly ever, indeed, no matter how much money there be in his pocket, can he eve n learn to dress like a gentleman-born.
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《美诺篇》主要讨论的是（）。
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注胶翡翠出售时应标明什么？
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寒邪致病，症见肢体屈伸不利，是由于（）
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三氯甲烷侵害人的（）。
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质押状态下，不可进行冻结、扣划、（）.
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30岁女性，婚后3年未孕，月经规则，近2年出现进行性痛经，曾行输卵管通液检查显示通畅，妇科检查：子宫正常大小，后位，不活动，后壁有触痛性小结节，左附件可触及4cm×3cm×3cm包块，不活动，有压痛。为进一步确诊，应首选的检查为（）.