已知有一维数组定义如下所示: int a[]={1,2,3,4,5,6,7,8,9,10}; 则生成数组a的副本的操作是? A. int b[] = new int[a.length];for(int i=0;i B. int[] b=Arrays.copyOf(a,a.length); C. int[] b=Arrays.copyOf(a,a.length-1); D. int b=a; E. int[] a={1,2,3,4,5,6};int[] b=new int[a.length];System.arraycopy(a,0,b,0,a.length);