根据下图所示情景,补上短文中所缺单词或短语。 The 1 night Jim

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问题:

根据下图所示情景,补上短文中所缺单词或短语。

     The   1   night Jim   2   very late(watched TV far into the night).When he   3   up in the morning, Jim found

that it was already   4  o'clock. He thought he would be   5   for school and felt very   6    . He   7 up   quickly,

took his schoolbag and   8   to school without breakfast.   When he   9   school,   he found it was quiet and

nobody else had come. He realized it was   10   and he had made a mistake.  

1.______  2._____ 3._____ 4.______  5._____

6.______  7._____ 8._____ 9.______  10._____

考点:日常生活类阅读
题型:填空题

某商品春节促销降价20%,如果节后恢复到原价,则应将现售价提高(  )

A.15%

B.20%

C.25%

D.30%

题型:填空题
如果
1
20
=
1
A
-
1
B
,其中A<B,那么A÷B是______.
题型:填空题

登天线铁塔工作系高空作来,每次登塔人员不得少于()人,严禁在大风、雷雨天气或酒后登塔作业。

A.1;

B.2;

C.3;

D.4

题型:填空题

任何人在发现直接危及()安全的紧急情况时,有权停止作业或者在采取可能的紧急措施后撤离作业场所,并立即报告

A、人身

B、电网

C、设备

D、交通

题型:填空题

假设一个计算机系统具有如下性能特征:处理一次中断平均需要500μs,一次进程调度平均需要花费1ms,进程的切换平均需要花费2ms。若该计算机系统的定时器每秒发出120次时钟中断,忽略其他I/O中断的影响,那么请问:

如果系统采用时间片轮转调度算法,24个时钟中断为一个时间片,操作系统每进行一次进程的切换,需要花费百分之几的CPU时间

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