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【简答题】
已知离散时间系统的状态空间方程式为 y(n)=[2 1]x(n)+[1]f(n) 若系统的初始状态x(0)=[0 1] T ，输入f(n)=ε(n)，求该系统的输出y(n)。
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【简答题】伊斯兰教的三大节日是？
【多选题】Watch the video clip and choose the advatages of APL Logistics Shipment Optimizer.
A.
Calculating container utilization
B.
Reducing unnecessary air freight
C.
Reviwing schedules
D.
Gaining greater control of your product flow
E.
Optimizing transportation routes
F.
Comparing shipping rates
【单选题】Examine the parameter for your database instance: You generated the execution plan for the following query in the plan table and noticed that the nested loop join was done. After actual execution of t...
A.
The optimizer used a dynamic plan for the query.
B.
The optimizer chose different plans because automatic dynamic sampling was enabled.
C.
The optimizer used re-optimization cardinality feedback for the query.
D.
The optimizer chose different plan because extended statistics were created for the columns used.
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