D . instance members of a static inner class can be referenced using the class name of the static inner class 的意思是不是说静态内部类的变量可以用静态内部类的名字来引用。
2.
Referring to enclosing type parameters inside static methods and static inner classes is prohibited outright by the compiler 编译器完全禁止在静态方法和静态内部类中引用封闭类型参数。