Why would a clone not be identical to the "master copy"?
A、They are totally different persons.
B、The clone's cells, for example, would have energy-processing machinery that came from the egg, not from the person who was cloned.
C、They have different genetic source.
D、The clone’s cells can be productive.
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19、以下关于Java语言中clone()方法的使用错误的是()。
A.对于任何对象x,都有x.clone()==x
B.对于任何对象x,都有x.clone().getClass()==x.getClass()
C.在子类的clone()方法中可以通过调用super.clone()来实现自我复制
D.支持浅克隆的类必须实现Cloneable接口,否则将抛出CloneNotSupportedException异常
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MySQL数据库支持以下哪些复制模式?
A.master-slave
B.master-master
C.master-master-slave
D.master-slave-slave