He told them he was old and _______ and was not able to walk so far.
A. inviting
B. odd
C. feeble
D. twisting
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This remarkable technology provides far greater ________ than conventional x-rays.
A. clash
B. clarity
C. clarification
D. classification
Mrs. Brown's apparent _______ of her husband was really her attempt to make him within sight and pay attention to her.
A. dominant
B. domain
C. dominate
D. dominance
( )是指保护数据库,防止未经授权的或不合法的使用造成的数据泄漏、更改破坏。
A. 数据库安全性
B. 数据完整性
C. 并发控制
D. 数据库恢复
命令mysql -h 192.168.34.1 -u wang -p123的功能是( )
A. 用户wang(密码123)从IP地址为192.168.34.1的主机上连接MySQL
B. 用户wang(密码123)连接IP地址为192.168.34.1的主机上的MySQL
C. 用户wang(密码123)连接本机上的MySQL
D. 用户wang(密码123)从IP地址为192.168.34.1的主机上连接本机上的MySQL