下列说法中，不属于水分在植物体内的作用的一项是[ ] A．使植株保持直立、硬挺的

我国省级行政单位中共有几个直辖市（　　）

A．23个

B．5个

C．4个

D．2个

请编写函数fun()，它的功能是：判断字符串是否是回文若是，函数返回1，主函数中输出：YES，否则返回0，主函数输出NO。回文是指顺读和倒读都一样的字符串。
例如，字符串LEVEL是回文，而字符串12312就不是回文。
[注意] 部分源程序给出如下。
请勿改动主函数main和其他函数中的任何内容，仅在函数fun的花括号中填入所编写的若干语句。

[试题源程序]

#include＜stdio.h＞
#define N 80
int fun(char *str)


main()

char s[N];
printf("Enter a string:")" gets(s);
printf("\n\n"); puts(s);
if(fun(s))
printf(" YES\n");
else
printf(" NO\n");
NONO();

NONO()

/*请在此函数内打开文件，输入测试数据，调用fun函数，输出数据，关闭文件。*/
FILE *rf, *wf;
int i ; char s[N];
rf=fopen("K:\\k06\\24010001\\in.dat", "r");
wf=fopen("K:\\k06\\24010001\\out.dat", "w");
for(i=0; i＜10; i++)
fscanf(rf, "%s", s);
if(fun(S))
fprintf(wf, "%s YES\n", s);
else
fprintf(wf, "%s NO\n", s);

fclose(rf);
fclose(wf);

阅读理解。

     On the evening of June 21, 1992, a tall man with brown hair and blue eyes entered the beautiful hall of

the Bell Tower Hotel in Xi'an with his bicycle. The hotel workers received him and telephoned the manager,

for they had never seen a bicycle in the hotel hall before though they lived in "the kingdom of bicycles."

     Robert Friedlander, an American, arrived in Xi'an on his bicycle trip across Asia which started last

December in New Delhi, India.

     When he was 11, he read the book Marco Polo and made up his mind to visit the Silk Road. Now, after

44 years, he was on the Silk Road in Xi'an and his early dreams were coming true. 

     Robert Friedlander's next destinations (目的地) were Lanzhou, Dunhuang, Urumqi, etc. He will complete

his trip in Pakistan.

1. The best headline (标题) for this newspaper article would be _____.

A. The Kingdom of Bicycles

B. A Beautiful Hotel in Xi'an

C. Marco Polo and the Silk Road

D. An American Achieving His Dreams

2. Friedlander is visiting the three countries in the following order _____.

A. China, India, and Pakistan

B. India, China, and Pakistan

C. Pakistan, China, and India

D. China, Pakistan, and India

3. What made Friedlander want to come to China _____?

A. The stories about Marco Polo.

B. The famous sights in Xi'an.

C. His interest in Chinese silk.

D. His childhood dreams about bicycles.

4. Friedlander can be said to be _____.

A. clever

B. friendly

C. hardworking

D. strong-minded

某通信基本建设基础上各年现金流量预测数据如下表：

搜索

该项目在i=5%时的净现值是（）万元。

A．24.75

B．21.95

C．15.69

D．10.31

男性，28岁。外伤致肱骨中下1/3骨折，伴有桡神经损伤，临床上除骨折体征外，还可出现的体征是（）

A.手指不能靠拢

B.伸指、伸腕功能丧失

C.屈指、屈腕功能丧失

D.屈指、伸指功能丧失

E.伸腕功能存在，伸指功能丧失