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可能经由空气传播的微生物是（）。
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下列病毒中不是该病的常见病因的是（） 应首选的检查是（） 首先应考虑的诊断是（）
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我国规定的禁止进境物有哪些？
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高炉炼铁所使用的燃料主要是（），其次是喷吹燃料。
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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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“齿”字是()。A、形声字B、会意字C、假借字D、象形字
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容积泵如何调节提高泵的扬程？
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领导干部不准妨碍涉及配偶、子女及其配偶、其他亲属以及身边工作人员案件的（）。
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根据驱动方式的不同，往复泵可分为（）泵。
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机械通气时，可能发生病人与呼吸机对抗。以下哪一种不是人机对抗发生的原因（）。