教育管理权变性原则。
教育管理权变性原则是指教育管理活动必须根据不同的情况确定和采取不同的措施、方法，实行动态调节，使教育管理具有针对性和适应性。
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Please see to it that the goods we ordered are shipped as soon as the covering letter of credit ____ you.( )
Since the premium varies with the scope of ____ extra premium is for buyer ' s account, should additional siske covered?( )
He ________ violin when I want to sleep.
We are looking forward to ___ your L/C for Order No 123.( )
This is our best price, ____ which we have concluded many orders with other buyers in your city.( )
