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山羊，高热稽留，口、鼻流黏液性分泌物。取该分泌物接种Vero细胞，6天后出现多核细胞病变。该病例最可能的病原是( )A.朊病毒 B.蓝舌病病毒 C.绵羊疸病毒 D.伪狂犬病病毒 E.小反刍兽病毒 绵羊，体温41°C，眼周围、唇、鼻、四肢、乳房等处出现痘疹。取病料电镜观察、可见卵圆形或砖形病毒粒子。该病例最可能的病原是( )A.朊病毒 B.蓝舌病病毒 C.绵羊疸病毒 D.伪狂犬病病毒 E.小反刍兽病毒 绵羊，体温41°C，口唇肿胀糜烂，舌部青紫色，陂行。取该病羊全血、经裂解后接种鸡胚分离到的病原能凝集绵羊及人OA型血细胞。该病例可能的病原是( )A.朊病毒 B.蓝舌病病毒 C.绵羊疸病毒 D.伪狂犬病病毒 E.小反刍兽病毒
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A.
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B.
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C.
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D.
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