已知美元兑瑞士法郎的即期汇率为USD/SFR=1.4525/1.4585,三个月掉期率为150/100,则美元兑瑞士法郎三个月远期汇率为()
A. 1.4375/1.4485
B. 1.4625/1.4635
C. 1.4625/1.4685
D. 1.4425/1.4435
E. 以上都不对
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油品检实尺,按照《液体石油产品静电安全规定》,规定检尺时上提速度不大于()。
A. 0.5m/s
B. 1m/s
C. 2.5m/s
D. 4m/
You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement: SQL>ALTER DATABASE OPEN RESETLOGS; Which of the following options is true about using the RESETLOGS option?()
A. The log sequence is reset to 0.
B. All the online redo logs are deleted.
C. All the archived redo logs from a previous incarnation become useless.
D. The full database backup taken from a previous incarnation can be used in future.
E. Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.
装置界区节点根据以下什么信息产生()。
A. 装置界区
B. 装置
C. 侧线
()是易扩散,与空气混合,浓度达到爆炸极限的可燃气体。
A. 乙炔
B. 氢气
CO2
D. 水蒸气