修改用户组student的组id为1050，应执行的操作为（）。
A: groupmod -n 1050 student
B: groupadd -n 1050 student
C: groupmod -g 1050 student
D: groupdel -g 1050 student
A: groupmod -n 1050 student
B: groupadd -n 1050 student
C: groupmod -g 1050 student
D: groupdel -g 1050 student
举一反三
- 陶器的烧制温度一般在（）。 A: A820℃--1050℃ B: B830℃--1050℃ C: C840℃--1050℃ D: D850℃--1050℃
- 纤维成品使用包装袋（上盖）尺寸为（） A: 1050*600*200mm B: 1150*600*200mm C: 1050*600*400mm D: 1050*400*200mm
- 删除student表中id为1的记录（） A: TRUNCATE FROM student where id=1; B: DELETE student where id=1; C: DELETE FROM student where id=1; D: DELETE INTO student where id=1;
- 【单选题】使用命令添加用户student,设置密码为student,然后使用命令删除该用户。 A. useradd student passwd student userdel student B. useradd student passwd student sudo userdel student C. useradd student sudo passwd student sudo userdel student D. su root useradd student passwd student userdel student
- 删除student表中id为1的记录，下列语句正确的是 A: DELETE student WHERE id=1; B: DELETE FROM student WHERE id=1; C: DELETE FROM student WHERE id:=1; D: DELETE student WHERE id:=1;