某天加工原油密度=0.9017,特性因素K=11.2,含硫量为0.91,该原油属于()。
A. 含硫中间基,重质原油
B. 含硫中间基,中质原油
C. 低硫石蜡基原油
D. 低硫环烷基原油
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熄焦后焦炭由熄焦车放到焦台后,一般应在焦台上停留15~20分钟的时间。
A. 正确
B. 错误
在Word中新建文档存盘时的“另存为”对话框要求用户确定的内容包括()
A. 存放位置
B. 文件名
C. 数据库名
D. 保存类型
桩的垂直偏差应控制在()之内,平面位置的偏差,除上面盖有基础梁的桩和桩数为1~2根或单排桩基中的桩外,一般为()个桩的直径或边长
A. 0.5%,1/4~1/2
B. 1%,1/2~1
C. 1.5%,1~20
D. 1.2%,2~3
You are managing an Oracle Database 11g database. You want to take a backup on tape drives of the USERS tablespace that has a single data file of 900 MB. You have tape drives of 300 MB each. To accomplish the backup, you issued the following RMAN command: RMAN>BACKUP SECTION SIZE 300M TABLESPACE users; What configuration should be effected to accomplish faster and optimized backups by using the above command?()
A. The SBT channel must be configured, with the default parallelism setting for the SBT device set to 1
B. The COMPATIBLE initialization parameter for the database instance must be set to at least 10.0
C. The SBT channel must be configured, with the parallelism setting for the SBT device set to 3
D. The SBT channel must be configured, with the MAXPIECESIZE set to 300 MB