A、foreman
B、operator
C、opener
D、stevedore
更多“During operation, the （）should check the working condition of the derrick.”相关的问题
A、Because row IDs may change during the flashback operation B、Because the object number changes after the flashback operation C、Because the rows are retrieved from the recycle bin during the flashback operation D、Because the table is moved forward and back to a temporary during the flashback operation
A、Because row IDs may change during the flashback operation B、Because the object number changes after the flashback operation C、Because the rows are retrieved from the recycle bin during the flashback operation D、Because the table is moved forward and back to a temporary during the flashback opertion
A、A. It saves disk space and reduces memory usage. B、B. It saves disk space but has no effect on memory usage. C、C. It incurs extra CPU overhead during DML as well as direct loading operations. D、D. It incurs extra CPU overhead during DML but not direct loading operations. E、E. It requires uncompress operation during I/O.
A、During operation at low speed B、During operation at rated speed, but low power output C、During acceleration D、All of the above
A、The index is not used by the optimizer but is maintained during DML operations. B、The index is not used by the optimizer and is not maintained during DML operations. C、The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations. D、The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.
A、A.filled with clean water before operation B、B.keep air cushion in oil collecting space during running C、C.check oil level during running D、D.clean inner separator with low pressure stream
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