题目内容

（）不合适平直的发型，应选用蓬松发型，使头皮接触更多空气，减少头部油脂的产生。

A. 油性发
B. 干性发
C. 受损发
D. 中性发

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Which three statements correctly describe the features of the I/O calibration process？（）

A. Only one I/O calibration process can run at a time
B. It automates the resource allocation for the Automated Maintenance Tasks
C. It improves the performance of the performance-critical sessions while running
D. It can be used to estimate the maximum number of I/Os and maximum latency time for the system
E. The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE

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