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[名词解释] 萜类化合物

凝胶剂常用的保湿剂是() ["卡波姆","乙醇","丙二醇","羟苯乙酯","聚山梨酯"] 不产毒素的白喉棒状杆菌被β-棒状杆菌噬菌体感染时则变成产毒白喉棒状杆菌,是发生()。 ["转化","转导","溶原性转换","接合","原生质体融合"] 皮下和肌间等处的疏松结缔组织所发生的一种弥漫性化脓性炎症称为() ["脓性卡他","脓肿","积脓","蓄脓","蜂窝织炎"] 可作乳膏剂防腐剂的是() ["黄凡士林","甘油","羟苯乙酯","月桂醇硫酸钠","乙醇"] 猪瘟、猪副伤寒和鸡瘟等时的肠黏膜表面出现的不容易剥离的假膜是() ["浆液性炎","纤维素性炎","化脓性炎","出血性炎","卡他性炎"] 萜类化合物
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