外币子账户单笔及当日累计存款最高限额分别为等值（）和（）万美元。
A. 10；20
B. 20；20
C. 20；50
D. 50；50
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简述绝缘电阻表产生发电机电压不稳定常见故障的主要原因及其排除方法。
道路运输甲醇的车辆发生阀门泄漏时，首先应____，再通知本单位或有关部门。
A. 通知就近单位
B. 通知运营部门
C. 采取有效封堵措施
pany has a Catalyst 6500 and you need to configure redundancy between the supervisor modules. With route processor redundancy （RPR+）， the redundant supervisor engine is fully initialized and configured， which shortens the switchover time if the active supervisor engine fails. Which three statements are true about the RPR + operations when the redundant supervisor engine switched over the failed primary supervisor engine？ （）
A. Static IP routes are maintained across a switchover because they are configured from entries in the configuration file.
B. Information about dynamic routing states， maintained on the active supervisor engine， is synchronized to the redundant supervisor engine and is transferred during the switchover.
C. Information about dynamic routing states， maintained on the active supervisor engine， is not synchronized to the redundant supervisor engine and is lost on switchover.
D. The Forwarding Information Base （FIB） tables are cleared on a switchover. As a result， routed traffic is interrupted until route tables reconverge.
E. Static IP routes are cleared across a switchover and recreated from entries in the configuration file on the redundant supervisor engine.
F. The Forwarding Information Base （FIB） tables are maintained during the switchover. As a result， routed traffic continues without any interruption when the failover occurs.
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