真空预压法主要施工工艺流程为()。 A.砂垫层施工、排水板施工、真空预压施工 。 B.场地平整、铺设砂垫层、打设排水板、铺设密封膜 。 C.排水板施工、密封沟施工、密封膜施工 。 D.砂垫层施工、密封沟施工、抽真空施工。
To accomplish user-managed backup for the USERS tablespace, you issued the following command to put the database in backup mode: SQL> ALTER TABLESPACE users BEGIN BACKUP; While copying the file to the backup destination a power outage caused the instance to te minate abnormally. Which statement is true about the next database startup and the USERS tablespace?() The database will open,and the tablespace automatically comes out of the backup mode.。 The database will be mounted,and recovery must be performed on the USERS tablespace.。 The database will be mounted,and data files in the USERS tablespace must be taken out of the backup mode.。 The database will not be mounted,and you must restore all the data files for the USERS tablespace from the backup,and perform recovery.。
Given: Which three methods, inserted individually at line 14, will correctly complete class Two?() int foo() { /* more code here */ }。 void foo() { /* more code here */ }。 public void foo() { /* more code here */ }。 private void foo() { /* more code here */ }。 protected void foo() { /* more code here */ }。
The /etc/inittab file is composed of position-dependent entries. What is the second field of an /etc/inittab file entry?() Label。 Action。 Command。 RunLevel。
物流管理的任务是() 在成本与利润间寻找平衡点。 在效益与效率间寻找平衡点。 在服务与成本间寻找平衡点。 在服务与利润间寻找平衡点。
GB16163《瓶装压缩气体分类》中的毒性气体有()种具有可燃性并带有腐蚀性或可能发生分解聚合反应。