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【单选题】
已知某逻辑门电路输入A,B及输出F的波形如图所示,输入与输出的逻辑式为()【图片】
A.
F=A+B
B.
F=AB
C.
D.
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参考答案:
举一反三
【单选题】测试三-4.mp3:
A.
She was making a phone call.
B.
She was working in the office.
C.
She was having a meeting.
D.
She was going to the airport.
【单选题】mp3:
A.
They are thirty dollars.
B.
They are the same size.
C.
They are too big.
D.
They are in fashion.
【单选题】假设某算法在输入规模为n时的计算时间为T(n)=3*2^n。在某台计算机上实现并完成概算法的时间为t秒。现有另一台计算机,其运行速度为第一台的64倍,那么在这台新机器上用同一算法在t秒内能解输入规模为多大的问题?( )
A.
n+8
B.
n+6
C.
n+7
D.
n+5
【单选题】mp3:
A.
The woman wants to get her money back.
B.
The machine costs too much.
C.
The woman is making a complaint.
D.
The machine works well.
【单选题】测验一4.mp3: 4.
A.
Yes. When?
B.
Yes. What?
C.
Well, how?
D.
Well, who?
【单选题】mp3:
A.
Less than one hour.
B.
One hour.
C.
More than one hour.
D.
15 minutes.
【简答题】在请求分页系统中,某用户程序的逻辑地址空间为 16 页,每页 1KB ,分配的内存空间为 8KB 。假定某时刻该用户的页表如下表所示。 ( 1 )逻辑地址 184BH 对应的物理地址是多少?(用十六进制表示) ( 2 )逻辑地址 5000( 十进制 ) 对应的物理地址是多少?(用十进制表示) ( 3 )当用户进程欲访问 24A0H 单元时,会出现什么现象? 页号 块号 0 3 1 7 2 4 3 ...
【单选题】不经丘脑换元的感觉是
A.
嗅觉
B.
听觉
C.
视觉
D.
痛觉
E.
味觉
【单选题】测验二-4.mp3:
A.
It’s terrible.
B.
No, thank you.
C.
Nothing serious.
D.
Yes, I have.
【单选题】期中4.mp3:
A.
They are thirty dollars.
B.
They are the same size.
C.
They are too big.
D.
They are in fashion.
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