“国文”的基本性质是什么？在语文教育发展史上有什么意义？
Case 1： 1. Shut down the database and perform a backup. 2. Restore all the data files. 3. Mount the database. 4. Recover the database. 5. Without applying all the redo log files， open the database using the RESETLOGS option. 6. Back up the database. Case 2： 1. Shut down the database and perform a backup. 2. Restore only the data files of the tablespace where user error damaged the data. 3. Mount the database. 4. Recover the database. 5. Open the database with the RESETLOGS option. 6. Back up the database. Case 3： 1. Shut down the database. 2. Restore the data files. 3. Open the database. 4. Perform recovery to the current point in time. Which case has the correct steps for an incomplete recovery？（） Only case 1。 Only case 2。 Only case 3。 Case 1 and 2。 Case 2 and 3。 Case 1 and 3。 All cases， case 1， case 2， case 3。
循环水补充水容量约为循环水总量的（） 5%。 6%。 10%。 50%。
下列属于美国电子商务立法的有（） 《数字签名法案》。 《统一电子交易法》。 《国际与跨州电子签名法》。 《信息与通讯服务法》。
You observe that the senior database administrator always uses the following command when connecting to Recovery Manager （RMAN）， and then starts executing commands to backup the database files： % rman target / What would be the effect of this command？（） RMAN would use the current operating system location to place the backup.。 RMAN would use the control file of the target database to maintain the backup.。 RMAN would use the recovery catalog of the target database to maintain the backup.。 RMAN would use the control file of the target database to maintain the backup metadata.。 RMAN would use the recovery catalog of the target database to maintain the backup metadata.。
在幼儿园的三、四岁的孩子身上，常常看到这种形式的游戏：一个孩子在切菜，其他孩子看到后马上过来切菜；一个孩子把菜放到玩具动物嘴里，马上有孩子会跟着这么做，他们互相模仿，但彼此没有交流，说明这时儿童游戏发展到（）
