问题：

[多选] Which two are true？（）

A . A finalizer may NOT be invoked explicitly.
B . The finalize method declared in class Object takes no action.
C . super.finalize（）is called implicitly by any over riding finalize method.
D . The finalize method for a given objec twill be called no more than once by the garbage collector.
E . The order in which finalize will be called on two objects is based on the order in which the two objects became finalizable.