第5题: [多项选择]下列对逆转录酶的叙述中正确的是 A. 属依赖RNA的DNA聚合酶 B. 具有RNA酶活性 C. 具有RNA聚合酶活性 D. 催化以dNTP为原料合成双链DNA 参考答案:A,B,D 答案解析:[考点] 逆转录及逆转录酶 [分析] 逆转录酶具有以RNA为模板催化DNA合成的活性,故属依赖RNA的 DNA聚合酶;还有水解杂化链上RNA的活性,此即为RNA酶活性;它还具有催化以DNA为模板
第29题: [单项选择]What can we infer from George Louie A. He was hired by DeLiberty to work on his case. B. Louie has conducted many successful cases. C. Louise feels sympathy for those businesses that have been set up. D. Louie has lost his professionalism as an attorney. 参考答案:D 答案解析:[题解] Lousie 并不为自己的行为感到羞耻,丧失了律师的基本职业道德,因此选D。