2-1.简述二极管、三极管的开关条件。 2-2.反相器如图题2-2所示。在Un、U一定的情况下,定性回答下列问题。 (1)为提高输入低电平时的抗干扰能力,R1、R2、-U应如何选取? (2)为提高输入高电平时的抗干扰能力,R1、R2、-uc、B、应如何选取?

1.以下表达式中符合逻辑运算法则的是 B.1+1=10 C.0<1 D.A+1 2.逻辑变量的取值1和0可以表示 A.开关的闭合、断开B.电位的高、低C.真与假D.电流的有、无

4-1在74LS48的B输入一周期7=2秒的方波时,显示效果如何?在I输入一频率 高于25Hz的占空比可调的矩形波时,显示效果如何?

5-1RS触发器有哪几种功能?写出特征方程和特性表。 5-2基本RS触发器如图题5-2所示,试画出Q对应R和S的波形(设Q的初态为0)。R图题5-2

6-1试分析图题6-1所示的时序电路(步骤要齐全)

7-1选择题 1.同步计数器和异步计数器比较,同步计数器的显著优点是控 A.工作速度高B.触发器利用率高C.电路简单D.不受时钟C

8-1.ROM由主要由哪几部分组成? 8-2.试比较ROM、PROM和 EPROM及E2PROM有哪些异同? 8-3.PROM、 EPROM和 E2PROM在使用上有哪些优缺点?

ARBITRATION AND INSOLVENCY PROCEEDINGS: CLAIMS OF ORDINARY BANKRUPTCY CREDITORS(1) Vesna Lazic(T.M.C. Asser Institut, The Hague) Readers are reminded that this work is protected by copyright While they are free to use the ideas expressed in it, they may not copy, distribute or publish the work or part of it, in any form, printed, electronic or otherwise, except for reasonable quoting, clearly indicating the source. Readers are

The Honourable Lord Reed(1) Readers are reminded that this work is protected by copyright While they are free to use the ideas expressed in it, they may not copy, distribute or publish the work or part of it, in any form, printed electronic or otherwise, except for reasonable quoting clearly indicating the source. Readers are

Readers are reminded that this work is protected by copyright. While they are free to use the ideas expressed in it, they may not copy, distribute or publish the work or part of it, in any form, printed, electronic or otherwise, except for reasonable quoting, clearly indicating the source. Readers are permitted to make copies, electronically or printed, for personal and classroom use