根据S0LAS公约规定,货船无线电安全证书的有效期为()。
A.12个月
B.24个月
C.36个月
D.5年
参考答案:D
阅读,给照片按顺序标号。
Dear Linda,
Thank you for your pictures. Here are my pictures. In the first picture, I'm playing basketball at school. In
the second picture, I'm swimming. In the next picture, you can see my family at home. We are eating dinner. In
the last picture. I'm with my sister Gina. She's doing homework. I'm watching TV.
Date.
( ) ( ) ( ) ( )
有以下程序: void f(int a[],int i,int j)int t; if(i<j) t=a[i];a[i]=a[j];a[j]=t; f(a,i+1,j-1); main() int i,aa[5]=1,2,3,4,5; f(aa,0,4); for(i=0;i<5;i++) printf("%d,",aa[i]); printf("\n"); 执行后输出结果是( )。
A.5,4,3,2,1,
B.5,2,3,4,1,
C.1,2,3,4,5,
D.1,5,4,3,2,