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[单选题]在SQL语句中，与表达式“仓库号NOT IN(“wh1”，“wh2”)”功能相同的表达式是A．仓库号=“wh1”AND仓库号：“wh2”B．仓库号!=“wh1”OR仓库号：=“wh2”C．仓库号＜＞“wh1”OR仓库号!=“wh2”D．仓库号!=“wh1”AND仓库号!=“wh2”
[单选题]在SQL语句中，与表达式“仓库号NOT IN(“wh1”，“wh2”)”功能相同的表达式是A．仓库号=“wh1”AND仓库号=“wh2”B．仓库号!=“wh1”OR仓库号#“wh2”C．仓库号＜＞“wh1”OR仓库号!=“wh2”D．仓库号!=“wh1”AND仓库号!=“wh2”
[单选题]给出在仓库“WH1”或“WH2”工作，且年龄小于40岁的职工号和姓名，正确的命令是（ ）。
[单选题]有下列程序 main() { int t, a=1, b=5, c=-2; while(a＞b＞c) { t=a; a=b; b=t; c++;} printf("%d, %d, %d", a, b, c); } 程序输出的结果是( )。A．1, 5, 0B．1, 5, -2C．5, 1, -1D．5, 1, -2
[问答题] 5WH法中的5WH各指何意？
[单选题]阅读以下函数fun(char *sl,char *s2){ int i=0;while(sl[i]==s2[i]&&s2[i]!='/0') i++;return(sl[i]=='/0'&&s2[i]=='/0');}此函数的功能是A．将s2所指字符串赋给s1B．比较s1和s2所指字符串的大小，若s1比s2的大，函数值为1，否则函数值为0C．比较s1和s2所指字符串是否相等，若相等，函数值为1，否则函数值为0D．比较s1和s2所指字符串的长度，若s1比
[试题] People are indulging in an illusion whenever they find themselves explaining at a cocktail(鸡尾酒) party, say, that they are "in computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of th
[试题] People are indulging in an illusion whenever they find themselves explaining at a cocktail(鸡尾酒) party, say, that they are "in computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of th