【单选题】【消耗次数：1】
下列选项中关于java中super关键字的说法错误的是（ ）
①
super关键字是在子类对象内部指代其父类对象的引用
②
super关键字不仅可以指代子类的直接父类，还可以指代父类的父类
③
子类可以通过super关键字调用父类的方法
④
子类可以通过super关键字调用父类的属性
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相关题目
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在使用super 和this关键字时，以下描述正确的是（ ）
①
在子类构造方法中使用super（）显示调用父类的构造方法，super（）必须写在子类构造方法的第一行，否则编译不通过
②
super（）和this（）不一定要放在构造方法内第一行
③
this（）和super（）可以同时出现在一个构造函数中
④
this（）和super（）可以在static环境中使用，包括static方法和static语句块
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下面是有关子类继承父类构造函数的描述,其中正确的是（ ）。
①
②
创建子类的对象时,先调用子类自己的构造函数,然后调用父类的构造函数
③
子类无条件地继承父类不含参数的构造函数
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子类必须通过super关键字调用父类的构造函数
⑤
子类无法继承父类的构造函数
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