【简答题】完形填空。 These days, it is easier for us to travel to other countries than ever before. However, there is a big difficulty that most of us _1_ when we meet people in other countries--we cannot communicat...
【简答题】若用 0 至 9 之间不同的三个数构成一个三位数,下面程序统计出共有多少种方法。请填空。 main ( ) { int i,j,k,count = 0; for (i =1; i <=9; i++) for (j=0; j<=9; j++) if ( 1 ) continue; else for (k=0; k <=9; k ++) if ( 2 ) count ++; printf(“%...