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服务单位向顾客收取技术维护费时，应与顾客签订全国统一的《增值税防伪税控开票系统技术维护协议》，顾客拒绝签订时（）
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根据区域旅游的历史、现状、资源和市场等规划要素的动态变化，对该区域旅游产业发展全局进行宏观战略部署的旅游规划是()
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对于公共产品，公众不同的偏好很容易加总。()
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依恋是婴儿与照顾者之间的关系。
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下列各项中，不属于脑出血临床表现的是（）。
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在电气化区段作业时，人员及携带物品距接触网设备带电部分不得少于（）米。
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下列选项中，（）不是液压系统压力不足的原因。
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In every cultivated language, there are two great classes of words which, taken together, comprise the whole vocabulary. First, there are those words（1）which we become acquainted in daily conversation, which we（2）,that is to say, from the（3） of our own family and from our familiar associates, and（4） we should know and use （5 ）we could not read or write. They （6） the common things of life, and are the stock in trade of all who （7） the language. Such words may be called“popular”, since they belong to the people （8） and are not the exclusive （9） of a limited class. On the other hand, our language （10） a multitude of words which are comparatively （11） used in ordinary conversation. Their meanings are known to every educated person, but there is little （12） to use them at home or in the market-place. Our （13） acquaintance with them comes not from our mother's （14） or from the talk of our school-mates, （15） from books that we read, lectures that we （16） ,or the more （17）conversation of highly educated speakers who are discussing some particular （18） n a style appropriately elevated above the habitual（19） f everyday life. Such words are called“learned”, and the （20） between them and the“popular”words is of great importance to a right understanding of linguistic process. 请在8处填上正确答案（）
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有关对土地征收的补偿安置的叙述中，正确的是（）。
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婴儿10个月，发热、烦躁、频咳、喘憋2d就诊。查体：体温39℃，口周发绀，鼻翼扇动，三凹征阳性。两肺呼吸音粗，血象白细胞9．0×109／L，中性47％。第5天患儿仍高热不退，咳喘加重，精神萎靡，面色青灰，呼吸70／min，右下肺叩浊，可闻管样呼吸音及中小水泡音，心率180／min，心音低钝，肝脏肋下3．5cm，此时最可能的诊断是（）