双层底横向构件中,上缘开有气孔下缘开有油水孔中间开有减轻孔的肋板称为:()
A. 组合肋板
B. 水密肋板
C. 轻型肋板
D. 实肋板
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在Photoshop CS中提供的图层合并方式有()。
A. 向下合并
B. 合并可见层
C. 拼合图层
D. 合并链接图层
在我国职业资格证书根据不同的职业,分为全国统一鉴定,省级劳动部门统一鉴定。
A. 正确
B. 错误
展车对生产控制各环节要求较高,对于世界顶级车展,通常要求的展车级别为()。
A. Q0
B. Q1
C. Q2
D. Q3
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?()
A. Only case 1
B. Only case 2
C. Only case 3
D. Case 1 and 2
E. Case 2 and 3
F. Case 1 and 3
G. All cases, case 1, case 2, case 3