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小二出生时即存在，出生3~4个月消失的神经反射是（）
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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9处填上正确答案（）
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YJ17卷烟机油墨计量泵当手柄位于（）位时，油墨输送量最大。
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体外扩增DNA或RNA的步骤是（）
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下列哪项不是脊椎结核的X线征象（）
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教育心理学作为一门独立的学科，从20世纪60年代到70年代末为（ ）
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使用晶体管参数测试仪时，必须让仪器处在垂直位置时才能使用。
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大陆与台湾地区互寄的（）的查询有效期为邮件交寄次日起12个月。
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最适用饭店连锁经营的组织结构形式是（）。
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国家机构是一个动态功能组织系统。()