【单选题】【消耗次数:1】
When Ann broke the dish she tried to put the _____back together.
fragments
pieces
bits
slices
参考答案:
复制
纠错
相关题目
【单选题】 When Ann broke the dish she tried to put the ____ back together.
①  fragments
②  pieces
③  bits
④  slices
【单选题】 When she saw the clouds, she went back to the house to ____ her umbrella.
①  bring
②  fetch
③  take
④  carry
【单选题】 When the girl heard the news, she could do nothing but ______ back home.
①  going
②  went
③  to go
④  go
【单选题】 My brother can take his car apart and put it back together again. I certainly wish he______ me how.
①  would teach
②  has taught
③  will teach
④  teaches
【单选题】 _______ she tried her best, she didn’t succeed.
①  Though
②  When
③  If
④  After
【单选题】 8.The girl was dancing about excitedly when suddenly she stood_______ and put on a horrified look.
①  silent
②  still
③  quiet
④  calm
【单选题】 While _______ the sun, the satellite has sent more than four billion bits of information back to earth.
①  having orbited
②  being orbited
③  having been orbited
④  orbiting
【单选题】 _____ for the fact that she broke her leg, she might have passed the exam.
①  Had it not been
②  Hadnt itbeen
③  Was it not
④  Were it not
【单选题】 Jane tried to ____ the doorman with money, but she failed.
①  bribe
②  corrupt
③  award
④  endow
【单选题】 Jane tried to _____the doorman with money, but she failed.
①  bribe
②  corrupt
③  award
④  endow
随机题目
【单选题】 下列有关汇编语言中标号的命名规则中,错误的是( )。
①  通常由字母打头的字符、数字串组成。
②  标号长度不能超过31个字符
③  ?和$不能单独作为标号
④  .号不可位于标号首
【单选题】 使计算机执行某种操作的命令是 ( )
①  伪指令
②  指令
③  标号
④  助记符
【简答题】 文法G1(S),它的产生式为:S→a|∧|(T),T→T,S|S。①消去G1的左递归。②写出非终结符的FIRST集与FOLLOW集。③构造它的分析表
【简答题】 已知赋值语句a:=b*(-c)+b*(-c)和产生赋值语句的抽象语法树的属性文法如下表1所示,请写出该赋值语句的抽象语法树、DAG图。表1 产生赋值语句抽象语法树的属性文法产 生 式语义规则S→id:=ES.nptr:=mknode(‘assign’,mkleaf(id,id.place),E.nptr)E→E1+E2E.nptr:=mknode(‘+’,E1.nptr,E2.nptr)E→E1*E2E.nptr:=mknode(‘*’,E1.nptr,E2.nptr)E→-E1E.nptr:=mknode(‘*’,E1.nptr,E2.nptr)E→ (E1)E.nptr:=E1.nptrE→idE.nptr:=mkleaf(id,id.place)
【简答题】 什么是文法的LR(0)项目,它是怎样分类的?
【简答题】 已知正规式:r=1(0|1)*101,要求完成下面三个任务。①构造NFA M1,使得L(M1)=L(r);②把NFA M1转化成DFA M2,使得L(M1)=L(M2)(一定要写出具体过程);③构造一个最小化的M3,使得L(M2)=L(M3)(一定要写出具体过程).
【简答题】 翻译程序?
【简答题】 请简述编译过程的主要步骤,以及每一个步骤主要作用是什么。
【简答题】 乔姆斯基(Chomsky)关于形式语言是怎样分类的?它们的功能分别相当于什么?
【简答题】 语法分析中,自上而下分析法存在的困难和缺点是什么?