输血最严重的并发症是 ( )

输血最严重的并发症是 ( )A.发热反应B.过敏反应C.变态反应D.溶血反应E.细菌污染反应

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有关耳蜗功能的叙述,下列选项正确的是 ( )

有关耳蜗功能的叙述,下列选项正确的是 ( )A.高频声波引起蜗顶基底膜振动最大B.基底膜振动的幅度和听神经纤维兴奋的数目与声波的强弱无关C.耳蜗基底膜上有听觉和位觉感受器D.把传导到耳蜗的机械振动转变成

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Adecisionmustbe______immediately_______stopthefactory______wastewaterwithoutbein

A decision must be ______immediately _______stop the factory ______waste water without being treated.

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Manypeople______liveinthecountrysideratherthaninthecity.

Many people ______live in the countryside rather than in the city.A. would ratherB. prefer toC. would

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通气储备功能的正常值( )

通气储备功能的正常值( )A.>90%B.>75%C.>85%D.>80%E.>95%

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