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【简答题】
8051内部有( )个并行口,P0口直接作输出口时,必须外接( );并行口作输入口时,必须先( ) ,才能读入外设的状态。
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【单选题】有以下程序段,其输出结果是( )。 void main() { int i=0; do printf("%d",i); while(i++); printf("%d\n",i); }
A.
10
B.
01
C.
00
D.
程序进入无限循环
【简答题】C Although the women' s rights movement in the United States is thought of as a recent development, its beginnings date back over one hundred and sy years. At that time women were dependents in t...
【简答题】中国园林的雏形 是 ,以围定的自然风景为主体。
【简答题】__________ their differences. The couple were developing an obvious and genuine affection for each other. A) But for B) For all C) Above all D) Except for
【单选题】阅读以下程序,程序运行后,如果从键盘上输入5,则输出结果是_______。(参考代码:XT_06_01_09.c) #include int main(){ int x; scanf("%d",&x); if(x--<5) printf("%d",x); else printf("%d",x++); return 0; }
A.
3
B.
4
C.
5
D.
6
【单选题】以下程序的输出结果___________。(参考代码:XT_07_01_23.C) #include int main( ) { int n=0; while(n++<=1) printf("%d ",n); printf(" %d ",n); return 0; }
A.
1 2 3
B.
0 1 2
C.
1 1 2
D.
1 2 2
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