船舶航行数据记录仪数据的下载和校验工作应至少每()月进行一次。
A.1
B.2
C.3
D.4
参考答案:A
Areas where students have particular difficulty have been treated particular care.
A.in
B.by
C.with
D.under
定义结构体数组:
struct stu
int num;
charname[20];
x[5]=1,"LI",2,"ZHAO",3,"WANG",4,"ZHANG",5,"LIU";
for(i=1;i<5;i++)
printf("%d%C",x[i].num,x[i]name[2]);
以上程序段的输出结果为( )。
A.2A3N4A5U
B.112A3H41
C.1A2N3A4U
D.2H3A4H51