(单选题)对于Map("book" -> 5, "pen" -> 2).map(m => m._1 -> m._2 * 2)结果说法正确的是?( ) 选项: A:Map("book" -> 5, "pen" -> 2 ,"book" -> 5, "pen" -> 2) B:Map("bookbook" -> 10, "penpen" -> 4) C:Map("book" -> 10, "pen" -> 4) D:Map("bookbook" -> 5, "penpen" -> 2) 结果 对于 发布时间:2024-05-07 19:44:45