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【简答题】
理想气体的绝热可逆和绝热不可逆过程的功,都可用公式 W=Cv△T 计算 ,过程所做的功是否一样 ?
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皮皮学刷刷变学霸
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【单选题】实现“取消用户USER4对学生表STUD中学号(XH)的修改权限”这一功能的SQL语句是( )。
A.
REVOKE UPDATE (XH) ON TABLE FROM USER4
B.
REVOKE UPDATE (XH) ON TABLE STUD FROM PUBLIC
C.
REVOKE UPDATE (XH) ON TABLE STUD FROM USER4
D.
REVOKE ALL PRIVILEGES ON TABLE STUD FROM USER4
【简答题】I am LiPing. I graduate from senior high school and major in __ 1 _____. I started learning English since I was 12 years old. My parents ___ 2 ____ a lot of American friends. That’s why I have no prob...
【单选题】实现“收回用户U4对学生表STUD中学号(XH)的修改权”这一功能的正确SQL语句是 ______。
A.
REVOKE UPDAE(XH)ON TABLE FROM U4
B.
REVOKE UPDAE(XH)ON TABLE STUD FROM PUBLIC
C.
REVOKE UPDAE(XH)ON TABLE STUD FROM U4
D.
REVOKE ALL PRIVILEGES ON TABLE FROM U4
【简答题】I have no problem with you expressing your opinions, but that doesn't mean that your opinions cannot be stupid, or _____, or ignorant. (inform)
【简答题】I have no problem______(爬) the mountains, which is not too high.
【简答题】语句revoke ALL, from 'user1'@'localhost'可以撤销用户所有权限。
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