. --The weather has been very hot and dry.

--Yes. If it had rained even a drop, things would be much better now! And my vegetables__________

A．wouldn't die

B．didn't die

C．hadn't died

D．wouldn't have died

[说明]
设计一个类模板Sample用于对一个有序数组采用二分法查找元素下标。
[c++程序]
#include＜iostream. h＞
#define Max 100 //最多元素个数
template＜class T＞
class Sample

T A [Max]; //存放有序数序
int n; //实际元素个数
Public：
Sample //默认构造函数
Sample(T a[] ,int i); //初始化构造函数
int seek(T c);
void disp

for (int i=0; i＜n; i++)
cout＜＜A [i]＜＜" ";
cout＜＜endl;

;
template＜class T＞
Sample＜T＞::Sample(T a[],int i)

n=I;
for (int j=0; j＜I; j++)
(1) ;

template＜class T＞
int Sample＜T＞::seek(T c)

int low=0,high=n-1,mid;
while( (2) )

mid=(low+high)/2;
if( (3) )
return mid;
else if ( (4) )
low=mid+1;
else
(5) ;

return-1;

void main()

char a[]="acegkmpwxz";
Sample＜char＞s(a,1.);
cout＜＜"元素序列：" ;s. disp();
cout＜＜"元素’g’ 的下标： "＜＜s. seek(’g’)＜＜endl;