【单选题】将 group1 的组名改为 groupt的正确命令是
A.
groupmod -n groupt group1
B.
groupmod -n group1 groupt
C.
groupmod -g groupt group1
D.
groupmod -g group1 groupt
【单选题】将ss表名修改为student;
A.
alter tables ss rename student;
B.
alter tables ss rename to student;
C.
rename table ss to student;
D.
rename tables ss to student;
【简答题】After a while. one of the ____________ (local) showed me the way to the post office.
【单选题】定时器控制寄存器TCON的作用是控制定时器的( )
【单选题】After _______ him the capsules at eleven o' clock I went out for a while.
【简答题】叙述烹饪原料的鉴定方法及每种鉴定方法的优缺点。