题目内容

旅客或货主对运输供给者提出的为实现旅客或货物空间位移的有支付能力的要求，叫()。

A. 运输欲望
B. 运输要求
C. 运输需求
D. 客、货运输量

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Which statement about recovering from the loss of a redo log group is true？（）

A. If the lost redo log group is ACTIVE， you should first attempt to clear the log file.
B. If the lost redo log group is CURRENT， you must clear the log file.
C. If the lost redo log group is ACTIVE， you must restore，perform cancel-based incomplete recovery，and open the database using the RESETLOGS option.
D. If the lost redo log group is CURRENT， you must restore，perform cancel-based incomplete recovery，and open the database using the RESETLOGS option.

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