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请简述气虚质的饮食调养。

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单位面积（）和（），可以测算各洲风电技术可开发量。

对于分相操作的开关、刀闸，在检查位置时，应分项填写检查A、B、C三相的位置。

A. 正确
B. 错误

周末及节假日必须召开晨会，内容可适当精简，但时间至少保证（）分钟。

A. 10
B. 5
C. 3

You work as a database administrator at Certkiller .com. In your production database there is a job， CALC_STAT， which has been scheduled to run every Friday at 5.00 p.m. CALC_STATupdates the optimizer statistics for the objects owned by the APPSschema. You want the task to be generic， thereby allowing users to modify the attributes of the task at run time without affecting the original task.Which component of Oracle Scheduler must you define to achieve this？（）

A. Window
B. Program
C. Job class
D. Window grou