【单选题】In the illustrated circuit, U is equal to _____V. Choose A,B,C o r D. Use KVL. The current flows through the 5V voltage source form the upside to downside is equal to 2+1=3A.
【多选题】If you want to leave a conversation, what should you say?
A.
I hate to be rude, but...
B.
It's been great talking to you, but....
C.
I won't keep you any longer.
【简答题】采用 8K*4 位的存储芯片,设计 32KB 的存储器系统。请给出设计方案,并画出地址线、数据线和片选线、读信号线、写信号线的连接示意图。
【单选题】设计容量为64K×4B的存储器,需要32K×1B的存储芯片多少片?采用的扩展技术是?
【多选题】若一组数据的偏度系数是 -0.25 ,则下列说法正确的有( )