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【单选题】
现有3个同时到达的作业 J1、J2和 J3,它们的执行时间分别是 3、3和 6。系统按方式运行且采用短作业优先算法,则平均周转时间是( )。A.
12
B.
4
C.
7
D.
9
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【简答题】Match the words with their meanings. defender handball offside referee shooter striker touchdown (a) a football player whose main job is to score goals (b) a player who ...
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【单选题】__________ is the act of taking a net asset position or a net liability position in some asset class.
A.
Hedging
B.
Speculating
C.
Selling
D.
Buying
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