立井使用罐笼提升时,井口、井底和中间运输巷的安全门必须与罐位和提升信号联锁。()
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65泵房放空罐最高液位为1米,当放空罐液位达到0.8米,必须开启()号泵将液位抽至最低。
A. 2
B. 3
C. 4
D. 5
What recommendations does the SQL Access Advisor provide for optimizing SQL queries?()
A. selection of SQL plan baselines
B. partitioning of tables and indexes
C. creation of index-organized tables
D. creation of bitmap, function-based,and B-tree indexes
E. optimization of materialized views for maximum query usage and fast refresh
针对跨区域销售车辆,客户营销部不给予价格政策支持。
A. 正确
B. 错误