多项选择题What are the four basic methods of delivering a speech? ( ) A. Reading verbatim from a manuscript B. Reciting a memorized text C. Speaking impromptu D. Speaking extemporaneously.
单项选择题把祖国建设成经济繁荣、环境优美、生态良好的美丽家园，是建设（）的根本要求。
