[职称英语等级考试模拟题理工类ＡＢ级]第1部分 词汇 选择（第1-15题，每题1分，共15分，建议10分钟以内完成）下面共有15句子，每个句子均有一个词或短语划有底横线，请从每个句子后面所给的四个选项中选择一个与划线部分意义...+阅读
★题目22
请编写函数countvalue()，它的功能是：求n以内（不包括n）同时能被3与7整除的所有自然数之和的平方根s，并作为函数值返回，后结果s输出到文件out.dat中。
例如若n为1000时，函数值应为：s=153.909064。
部分源程序存在文件prog1.c中。
请勿改动主函数main()和输入输出数据函数progreadwrite()的内容。
&emspinclude
&emspinclude
&emspinclude
double countvalue(int n)
{ int i;
double s=0.0;
for(i=1;i if(i%21==0) s+=i;
re
turn sqrt(s);
}
main()
{
clrscr();
printf("自然数之和的平方根=%f\n",countvalue(1000));
progreadwrite();
}
progreadwrite()
{
file *fp,*wf;
int i,n;
float s;
fp=fopen("in.dat","r");
if(fp==null){
printf("数据文件in.dat不存在!");
return;
}
wf=fopen("out.dat","w");
for(i=0;i
以下为关联文档：
职称英语等级考试模拟题综合类ＡＢ级第1部分 词汇 选择（第1-15题，每题1分，共15分，建议10分钟以内完成）下面共有15句子，每个句子均有一个词或短语划有底横线，请从每个句子后面所给的四个选项中选择一个与划线部分意义...
2009年度全国职称外语等级考试用书目录书 名 单价（元） 订数（册） 全国专业技术人员职称英语等级考试大纲 20 全国专业技术人员职称日语等级考试大纲 18 全国专业技术人员职称俄语等级考试大纲 11 全国专业技术人员职称...
全国职称外语等级考试综合类概括大意7PASSAGE 14 Earthquake Every year earthquakes are responsible for a large number of deaths and a vest amount of destruction in various parts of the world. Mos...
全国职称外语等级考试综合类概括大意2PASSAGE 3 Science Fiction Amongst the most popular books being written today are those which are usually classified as science fiction. Hundreds of titles ar...
全国职称外语等级考试综合类概括大意3PASSAGE 5 Recreation and Sports “All work and no play makes Jack a dull boy” is a popular saying in the United States. Other countries he similar sayings....
全国职称外语等级考试综合类概括大意6PASSAGE 12 Adult Education Voluntary learning in anized courses by mature men and women is called adult education. Such education is offered to make people a...
全国职称外语等级考试综合类概括大意4PASSAGE 8 Radio and Television There are few homes in Britain today that do not he either a radio or television set. Both of them he bee an essential part of...
全国职称英语等级考试阅读题Passage 2 Football is, I believe, the most popular game in England: one has only to go to one of the important matches to see this. Rich and poor, young and old...
全国职称外语等级考试综合类概括大意1PASSAGE 1 Successful Language Learners Some people seem to he a knack for learning languages. They can pick up new vocabulary， master rules or grammar， and lea...
