.

If I _______ long enough to have a job, I would choose to be a doctor, _______ those AIDS

patients.

A．had lived; helping

B．should live; help

C．were to live; helping

D．should have lived; help

在对象流中，对象的传送首先要将所传送的对象串行化，也就是实现Serializable接口。下列代码中必须实现Serializable接口的类是________。ObjectInput in = new ObjectInputStream (new FileInputStream(“employee.dat”));Employee[] newStaff = (Employee[]) in.readObject();