车辆性能不能直接影响货运效率。
参考答案:错
Mrs.Smith finds it hard to clear up the mess, as her children are always ________ whenever she tries to.
A.in the way
B.on watch
C.in sight
D.on the line
以下程序运行后的输出结果是【 】。 main( ) { int a [4][4]={{1,2,3,4},{5,6,7,8},{11,12,13,14},{15,16,17,18}}; int i=0,j=0,s=0; while(i++<4) { if(i==2||i==4) continue; j=0; do{ s+= a[j]; j++; } while(j<4); } printf("%d\n",s); }