第3题: [单项选择]关于化学发光酶免疫测定不正确的是()。 A. 是将发光系统与免疫反应相结合的技术 B. 化学发光剂作为酶反应底物 C. 以过氧化物酶为标记酶 D. 以邻苯二胺为底物 E. 加入发光剂提高敏感度和稳定性 参考答案:D 答案解析:化学发光酶免疫测定中,以过氧化物酶为标记酶时,其底物为鲁米诺。
第33题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. A retirement party. B. A faculty reception. C. A class reunion. D. A birthday party. 参考答案:D 答案解析:[听力原文]
W:Does John know the class is having a surprise party for him when he turns twenty-one this