以下程序段运行后sum的值为()。int k=0,sum=0;int a[3][4]={1,2,3,4,5,6,7,8,9,10,11,12};for(;k<3;k++) sum+=a[k][k+1];
A. 9
B. 18
C. 19
D. 21
以下程序段的输出结果是()。int a[4][4]={{1,3,5},{2,4,6},{3,5,7}}; printf(“%d%d%d%d”,a[0][3],a[1][2],a[2][1],a[3][0])
A. 0650
B. 1470
C. 5430
D. 输出值不定
The messages, usually nonverbal, sent from a listener to a speaker are called()
A. Cues
B. Prompts
C. Feedback
D. Channel
条件屈服强度是指残余应变为()%所对应的应力
A. 0.1
B. 0.2
C. 0.3
D. 0