为了增强磁性,对通电螺线管可采取的措施是:①________;②________;③________.
①增大电流;
②增加线圈的匝数;
③插入铁芯.
—How about Indian films?
—Some people say they are boring, _____ say they are great. [ ]
A. others
B. other
C. each
D. another
有以下程序: main() {int num[4][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}},ij; for(i=0;i<4;i++) { for(j=0;j<=i;j++) printf("%4c",’’);for(j=【 】;j<4;j++) printf("%4d",num[i][j]);printf("\n"); } } 若要按以下形式输出数组右上半三角 1234678 11 12 16 则在程序下划线处应填入的是【 】。
A.i-1
B.i
C.i+1
D.4-i