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听力原文：MB My phone hasn't been working this entire week. Dale looked at it yesterday and he said to get a new one if it still isn't working today. Do you know where I can get another phone? WB You can check in the storage room on the third floor. There are usually extra supplies in there. MB I think Dale checked there already and there weren't any extra phones. WB In that case, why don't you talk to Betty in general affairs? I'm sure she'd be able to find or order a new one for you. What is the problem?A.
The man forgot his password.
B.
The man's computer has a virus.
C.
The man's phone is not working.
D.
The man cannot find an important file.
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【单选题】在面向用户的调度准则中( ) 是选择批处理系统中选择作业调度算法的重要准则。
A.
响应时间快
B.
平均周转时间短
C.
截止时间的保证
D.
优先权高的作业能获得优先服务
【单选题】某生产过程，计划产量为500件，过程包括三道工序，每道工序的一次提交合格率都是95%，则过程的流通合格率为________。
A.
95%
B.
90%
C.
86%
D.
80%
【单选题】在面向用户的调度准则中,()是选择批处理系统中选择作业调度算法的重要准则
A.
响应时间快
B.
平均周转时间短
C.
截止时间的保证
D.
优先权高的作业能获得优先服务
E.
服务费低
【简答题】Statement接口提供了最常见的执行SQL的方法是__________、__________;(方法记得加())