单项选择题
A.这九个单元的主题是如何培养政治演讲这一能力。 B.本书分为九个单元,内容涉及如何发展作政治演讲所需的各项能力。 C.这本书仅有九个单元,却解决了如何发展政治演讲这一能力的难题。 D.本书由九个单元组成,讨论的是如何培养作政治演讲所需的各项能力。
A、very old people enjoy living with their relatives B、social services have nothing to do with the very old people C、some old people like to live alone to have more personal freedom D、no one is willing to take care of very old people