题目

— I had a quarrel with my best friend yesterday. I apologized to her but she didn't listen to me. I don't know what to do now. — I'm not good at handling interpersonal relationships. A . Where has she got to? B . What's got into her? C . Just get off my back. D . You've got me there. 答案：D检测某一植物细胞，发现分解有机物缓慢，酶的催化效率极低，则该细胞正在A.分化 B.分裂 C.衰老 D.癌变