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B.are it not for
C.has it not been for
D.had it not been for
答案
更多“__________ the PLA men the villagers would not have survived the flood.”相关的问题
第1题
试用PLA和D触发器设计一个具有以下逻辑功能的电路，并画出PLA阵列图。
①当M=0时，D4D3D2D1=ABCD
②当M=1时，D4=Q3、D3=Q2、D2=Q1、D1=0在CP作用下实现左移操作。
第2题
用可编辑逻辑阵列PLA设计一个组合电路，该电路的输出函数表达式如下：
Y1(A，B，C)=∑m(3，4，6)
Y2(A，B，C)=∏M(1，4，6)
Y3=(A+C)(A+B)
要求：(1)用卡诺图化简函数(主意公共项的利用)；(2)写出与项和或项；(3)画出PLA实现之阵列图。
第3题
【D9】
SPEAKER A: 【D8】______ SPEAKER B: WHAT"S THE PROBLEM？ SPEAKER A: I CAN"T FIND THE PLACE I"M LOOKING FOR. SPEAKER B: WHAT ARE YOU LOOKING FOR？ SPEAKER A: 【D9】______ SPEAKER B:YOU DON"T KNOW WHERE THE THEATER IS？ SPEAKER A: I"M COMPLETELY LOST. SPEAKER B: DO YOU HAVE ANY IDEA WHERE THE MALL IS？ SPEAKER A: YES, I DO. SPEAKER B: 【D10】______ SPEAKER A: I DIDN"T KNOW THE MALL HAD A MOVIE THEATER. SPEAKER B: IT"S NEWLY OPENE
D. A. THE MALL HAS ITS OWN MOVIE THEATER.
B. I NEED YOUR ASSISTANC
E.
C. I"M GOING TO THE MALL.
D. I AM TRYING TO GO SEE A MOVI
E.
第4题
【D8】
SPEAKER A: 【D8】______ SPEAKER B: WHAT"S THE PROBLEM？ SPEAKER A: I CAN"T FIND THE PLACE I"M LOOKING FOR. SPEAKER B: WHAT ARE YOU LOOKING FOR？ SPEAKER A: 【D9】______ SPEAKER B:YOU DON"T KNOW WHERE THE THEATER IS？ SPEAKER A: I"M COMPLETELY LOST. SPEAKER B: DO YOU HAVE ANY IDEA WHERE THE MALL IS？ SPEAKER A: YES, I DO. SPEAKER B: 【D10】______ SPEAKER A: I DIDN"T KNOW THE MALL HAD A MOVIE THEATER. SPEAKER B: IT"S NEWLY OPENE
D. A. THE MALL HAS ITS OWN MOVIE THEATER.
B. I NEED YOUR ASSISTANC
E.
C. I"M GOING TO THE MALL.
D. I AM TRYING TO GO SEE A MOVI
E.
第8题
已知输入波形A、B、C及输出波形Y1、Y2、Y3、Y4如图所示。
试用可编程逻辑阵列PLA实现Y1～Y4，并在图上画出PLA结构图。
