在 MySQL 中,删除用户的命令是( ) A: DROP USER B: REVOKE USER C: DELETE USER D: REMOVE USER

hive中清空表user的HQL语句为（ ） A: delete from user; B: remove table user; C: drop table user; D: truncate table user;

Given that a scoped attribute cart exist only in a user’s session， which two， taken independently， ensure the scoped attribute cart no longer exists？（） A:  ${cart = null }  B:  <c：remove var=”cart” />  C:  <c：remove var=”${cart}” />  D:  <c：remove var=”cart” scope=”session” />  E:  <c：remove scope=”session”>cart</c：remove> F:  <c：remove var=”${cart}” scope=”session” />  G:  <c：remove scope=”session”>${cart}</c：remove>

Given that a scoped attribute cart exists only in a user’s session， which two，taken independently，ensurethe scoped attribute cart no longer exists？（） A: ${cart = null} B: <c：remove var="cart" /> C: <c：remove var="${cart}" /> D: <c：remove var="cart" scope="session" /> E: <c：remove scope="session">cart</c：remove>

将字段User改为user需要编写| rename User user

已知,存在 QueryRunner对象 runner , SQL语句: String sql = "select * from user where id=?"; 下面操作中,能实现查询指定记录的选项是() A: User user=(User)runner.query(sql, new BeanListHandler(User.class), new Object[]{id}); B: User user=(User)runner.query(sql, new BeanHandler(User.class)); C: User user=(User)runner.query(sql, new BeanListHandler(User.class), id); D: User user=(User)runner.query(sql, new BeanHandler(User.class), new Object[]{id});

request.setAttribute("user","svse");session.setAttribute("user","bob");使用{user}则显示( )

Heat the soup for ten minutes, and then _______from the stove. A: you should remove it B: removing it C: to remove it D: remove it

删除用户账户命令是( ) A: DROP USER B: DROP TABLE USER C: DELETE USER D: DELETE FROM USER

要删除用户user，同时也删除其家目录，则应使用指令 A: userdel user B: userdel -r user C: deluser -r user D: deluser user