A.SELECT*HAVING user B.SELECT*WHERE user C.SELECT*FROM user D.SELECT user INTO*
A.單擊“編輯”菜單,然后選擇“全選” B.單擊“文件”菜單,然后選擇“全選” C.按Ctrl+A快捷鍵 D.按Ctrl+C快捷鍵
A.192.0.0.0~223.255.255.255 B.128.0.0.0~191.255.255.255 C.0.0.0.0~127.255.255.255 D.0.0.0.0~255.255.255.255
A.隱藏 B.只讀 C.共享 D.存檔
A.局域網(wǎng)B.廣域網(wǎng)C.城域網(wǎng)D.因特網(wǎng)
A.0.5 B.分?jǐn)?shù)1/2 C.1月2日 D.字符串