单项选择题 G-菌对青霉素、溶菌酶不敏感，其原因是( )

单项选择题 听力原文：W: Did you like your work as a reporter?M: Well, it was interesting. But I had to work long hours. I was never at home on weekends.What does the man mean?A．He doesn't like the work because it kept him.B．He doesn' t like the work because it isn' t interesting.C．He likes the work very much.

单项选择题 随着市场竞争的加剧，金融企业的经营理念应以（）为中心。