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问题 单项选择题

有如下程序：
#include ＜iostream＞
#include ＜iomanip＞
using namespace std;
class CSum

int x,y;
public:
CSum (int x0,int y0):x(x0),y(y0)
friend ostream& operator＜＜(ostream& os,const CSum& xa)

os＜＜setw(5)＜＜xa.x+xa.y;
return os;

;
int main()
CSum y(3,5);
cout＜＜setfill('*')＜＜8;
cout＜＜y;
return 0;

执行上面程序的输出是( )。

A．88
B．****88
C．****8****8
D．8****8

答案

参考答案：D

填空题
已知函数f（x）在区间（0，+∞）上是减函数，则f（x2+x+1）与f(
3
4
)的大小关系是______．
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填空题

短文填词

A little child was playing one day with a very valuable vase.

He put his h________into it and could not draw

it back out.His father tried________vain to get

his hand out.They were thinking of breaking the vase

________(这时) his father said, "Now, my son,

try one more time.Hold your fingers out straight as you see me

d________and then pull."4.________

To________astonishment, the little fellow said.

"Oh no, father, I couldn't pull my fingers out like that because if

I did I________drop my penny." You may think it

is stupid________the boy to stick to penny at the

cost of his hand.Aren't we l________that little boy

sometimes?We are busy holding on to the world's

________(无价值的) penny that prevents us from

enjoying________(自由) belonging to us.
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