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发生急性猪丹毒时，脾脏的病变是（）。
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根据吸声材料的作用原理选择吸声材料时，以下错误的是( )。 A．多孔性吸声材料对高频和中频的声音吸声效果较好 B．薄板共振吸声结构主要是吸收低频声音 C．穿孔板或空气共振吸声结构，对中频的吸收能力强 D．帘幕吸声体对低频的吸收能力强
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骨盆入口前后径的前端是（）
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信息加工的统一性是指Internet信息都是以网页的形式呈现，所有的信息都有一个具体的URL地址或IP地址作为其区别于其它网上信息的标志，全球通用。这是不同于其它数字或电子信息或传统的印刷信息。()
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气体溶质在溶剂中的溶解度随温度上升而（）
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下列哪种免疫缺陷性疾病与体液免疫无关（）
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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16处填上正确答案（）
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偏航阻尼器的功用是将什么减到最小（）.
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正常人全血CT值________Hu，一般血肿的CT值范围是_______Hu。