A.delete[]a B.deletea[] C.deletea
A.inta;a=newsizeof(int*20) B.inta;a=newint[20] C.inta;a=newint(20) D.int*a;a=newsizeof(int*20) E.int*a;a=newint[20] F.int*a;a=new20
A.public B.private C.protected D.都不對(duì)