名词解释题关键字密度(Keyword Density)
名词解释题
关键字密度(Keyword Density)
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关于光学密度的叙述,错误的是A.密度以D表示(Density)B.密度是阻光率以l0为底的对数S 关于光学密度的叙述,错误的是A.密度以D表示(Density)B.密度是阻光率以l0为底的对数C.照片影像的密度,要用看片灯测量D.D=log10入射光强度I。/透射光强度IE.适合诊断的密度范围为0.25~2.0
阅读以下说明和C语言程序,将应填入(n)处的字句写在对应栏内。【说明】以字符流形式读入一个文件,从文件中检索出6种C语言的关键字,并统计、输出每种关键字在文件中出现的次数。本程序中规定:单词是一个以空格或'\t'、'\n'结束的字符串。其中6种关键字在程序中已经给出。【程序】include <stdio.h>include <stdlib.h>FILE *cp;char fname[20], buf[100];int NUM;struct key{ char word[10];int count;}keyword[]={ "if", 0, "char", 0, "int", 0,"else", 0, "while", 0, "return", 0};char *getword (FILE *fp){ int i=0;char c;while((c=getc(fp))!= EOF (1));if(c==EOF)return (NULL);elsebuf[i++]=c;while((c=fgetc(fp))!=EOF c!=" c!='\t' c!='\n' )buf[i++]=c;buf[i]='\0';return(buf);}void lookup(char *p){ int i;char *q, *s;for(i=0; i<NUM; i++){ q=(2);s=p;while(*s (*s==*q)){ (3))if((4)){ keyword[i].count++;break;}}return;}void main(){ int i;char *word;printf("lnput file name:");scanf("%s", fname);if((cp=fopen(fname, "r"))==NULL){ printf("File open error: %s\n", fname);exit(0);}NUM=sizeof(keyword)/sizeof(struct key);while((5))lookup(word);fclose(cp);for(i=0;i<NUM;i++)printf("keyword:%-20s count=%d\n",keyword[i].word,keyword[i].count);}
关于光学密度叙述,错误的是A.密度以D(Density)表示B.密度是阻光率以10为底的对数SXB 关于光学密度叙述,错误的是A.密度以D(Density)表示B.密度是阻光率以10为底的对数C.D—lgI0/ID.照片影像的密度,要用看片灯测量E.适合诊断的密度范围在0.25~2.0
在logdat表中,将当前记录的KeyWord字段修改为uk72hJ,则实现的SQL语句为()AUPDATE logdat SET KeyWord=uk72hJBUPDATE SET KeyWord=uk72hJCUPDATE logdat SET KeyWord=‟uk72Hj‟DEdit logdat SET KeyWord=uk72hJ
如果ASWG策略检测关键字keyword并阻止,用户请求http://www.baidu.com/search?p=keyword,以下哪种检测设置下用户访问会被阻止()?A、仅URLB、仅CGIC、URL和CGI
关于光学密度叙述,错误的是()A、密度以D(Density)表示B、密度是阻光率以10为底的对数C、D=lgⅠ0/ⅠD、照片影像的密度,要用看片灯测量E、适合诊断的密度范围为0.25~2.0
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单选题在logdat表中,将当前记录的KeyWord字段修改为uk72hJ,则实现的SQL语句为()AUPDATE logdat SET KeyWord=uk72hJBUPDATE SET KeyWord=uk72hJCUPDATE logdat SET KeyWord=‟uk72Hj‟DEdit logdat SET KeyWord=uk72hJ
名词解释题人口净密度(net residential density)