我想请问一下 这3个问题的差别?? 1. Which of the following are modifiers that can be applied to a field declaration within an interface? 2. Which of the following is a modifier that can be applied to a field declaration within an interface? 3. Which of the following modifiers can be applied to a class that is declared within an enclosing interface? 其中1,2只差在is跟are , 难道只是差单选跟复选吗? 题目的问的内容应该是一样的吗? 3.enclosing interface??这是什麽意思阿?? 还有 1. Which of the following are modifiers that can be applied to an interface that is a member of a directly enclosing class? 2. Which of the following are modifiers that can be applied to an interface that is a member of a directly enclosing interface? 这两个 我也有点搞不懂 directly enclosing class , directly enclosing interface 的差别?? --

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