您的位置: 首页 > 作业答案 > 其他 > 假设A=true,B=false,C=true,D=true,逻辑运算表达式A∧B∨C∧D的值是( ).为什么?

假设A=true,B=false,C=true,D=true,逻辑运算表达式A∧B∨C∧D的值是( ).为什么?

分类: 作业答案 • 2021-12-18 16:35:43

问题描述：

假设A=true,B=false,C=true,D=true,逻辑运算表达式A∧B∨C∧D的值是( ).
为什么?

答

上述表达式,可以以如下方法分析,首先我们必须了解 ∧的优先级高于∨
第一步: (A∧B)∨C∧D 得到 false ∨C∧D
第二步: false ∨(C∧D) 得到 false ∨ true
第三步: 得到答案就是 true

c and ab or ac and cb or b>c" target="_blank"> 已知a=12,b=14,c=18,下列表达式的值为"True"的是 A.b>c and ab or ac and cb or b>c
英文版的1List at least three physical properties of tap water2Identify each of the following as an extensive or intensive physical propertya melting point b mass c density d length3"properties are not affected by changes in temperature and pressure." Is this statement true or false?Explain4Classify each of the following as a physical property or a chemical property.a aluminum has a silvery colorb gold has a density of 19g/cm^3c sodium ignites when dropped
若有定义 int a=9,b=6; 那么a>b的值是 A.0 B.1 C.False D.True
John said he'd been working in the office for an hour,___was true.为什么不选and which而选and that2.___the students must learn in a course is not provided in the classroom.a.much of what b.many things c.so much d.all what为什么是A不是C或D3.---would you like a cup of coffee or a glass of beer?---____will do,but milk is___popular with me.a.neither .notb.both.morec.either.the mostd.all.most 为什么选C不选B.
“AbC”B."the” “they”C.VISUAL” = UCase（“Visual”） D."Integer” > “Int”错误的选项" target="_blank"> 以下关系表达式中,其值为 False 的是（）.A."ABC” > “AbC”B."the” “they”C.VISUAL” = UCase（“Visual”） D."Integer” > “Int”错误的选项
His theory___to be true. A.proved B.was proved C.is proved D.has been proved(为什么不用被动,是proved的固定形式吗?）
为什么 0.1e+6是C语言的合法常量,而‘cd’不是?为什么 char A=65+1,b='b';是正确的定义语句?表达式3.6-5/2+1.2+5%2的值是?为什么5/2的结果是2不是2.以下不能正确表示代数式的C语言表达是?A 2*a*b/c/d B a*b/c/d*2 C a/c/d*b*2 D 2*a*b/c*d
科普英语的小知识Mother Teresa mainly worked with poor people in Africa.a.True b.False德雷莎主要是同非洲的穷人.a.对 b.错How many continents and oceans are there in the world?a4,5 b 5,7 c 4,6 d 7,4
麻烦告诉理由1.before we go,i must _change my clothesa.firstly b.first c.for the first time d.at first2.it's true that the old road is less driect and a bit longer.we won't take the new one,__,because we don't feel as safe on ita.somehow b.though c.threfore d.otherwise3.at the meeting yesterday,there was no one__his opinion expressed.a.not had b.didn't have c.had not d.who didn't have我当时选的答案是AAA但是都错了,
C语言的几道习题1、设a、b、c均匀int型的变量,且a=3,b=4,c=5,则下列表达式中值为0的是_____.选择一个答案 A.a>2的值是_____.选择一个答案 A.00000100 B.00000110 C.00000011 D.00000010 6、假设m是一个3位数,用表达式分离出m的十位上数字b=________.7、设 char ch; 以下不正确的赋值语句是_____.选择一个答案 A.ch="\\"; B.ch='\xef'; C.ch='\123'; D.ch=68; 8、设有语句：int a = 5,b = 7；执行语句：a += a++ || b++ 后,a=7,b =________.9、15≥a≥10或a≤0的C语言表达式是________.10、设有语句：int a = 3 ,b =5,m; 则执行语句：m = a
逻辑运算表达式：（┐A∧B）什么意思?题目说：“A=B=true,C=D=false”要过程,
A=B=D=TRUE,C=FALSE,以下表达式逻辑值为真的是( )A、A AND B AND C AND D B、A AND B OR C AND D C、A AND （B OR C） AND D D、（A OR B） AND （C AND D）B和C貌似都对诶,选哪个?and why?

假设A=true,B=false,C=true,D=true,逻辑运算表达式A∧B∨C∧D的值是( ).为什么?

相关推荐