• 2022-05-28
    下面的数据结构是( ),S=(D, R),其中D={ a, b, c, d, e, f }R={[a,e], [b,c], [c,a], [e,f], [f,d]}.注:“[]"表示有序对。
    A: 图
    B: 集合
    C: 树
    D: 线性
  • D

    内容

    • 0

      设 R = {[ a,d ],[ b,a ],[ b,c ],[ c,a],[ d,b],[ d,c ]} 是集合A = {a,b,c,d} 上的二元关系。则R不具备哪种性质? A: 反自反 B: 反对称 C: 对称 D: 都不具备

    • 1

      设 R = {[ a,d ],[ b,a ],[ b,c ],[ c,a],[ d,b],[ d,c ]} 是集合A = {a,b,c,d} 上的二元关系。则R不具备哪种性质? A: 反自反 B: 反对称 C: 传递 D: 都不具备

    • 2

      The 3rd homeworkListen to the following, spell the words in English and translate into Chinese._________________ [ʃeip]• _________________['traiæŋɡl]• ____________[raund]• _______________ ['əuvl]• _______________ [hɑ:t]• _______________ [stɑ:(r)]• _______________ [riŋ]• _______________ [ˈrektæŋɡl]• __________[skweə(r)]• _______________ ['daiəmənd]• _______________ [kju:b]• _______________ [kəʊn]_______________ ['kʌlə(r)]• _______________ [(h)wait] _______________ [blæk]• _______________ ['jeləu] _______________ [ɡri:n]• _______________ [red] _______________ ['silvə(r)]• _______________ ['ɡəuldən] _______________ [piŋk]• _______________ [braun] _______________ [blu:]• _______________ ['pə:pl] _______________ [ɡrei]• _______________ ['aivəri]_______________ [məˈtiəriəl]• _______________ ['leðə(r)] _______________ [klɔθ]• _______________ ['plæstik] _______________ ['rʌbə(r)]• _______________ [ˈmetl] _______________ [wud]_______________ ['tekstʃə(r)]• _______________ [sɔft]• _______________ [hɑ:d]• _______________ ['tendə(r)] _______________ [rʌf]• _______________ [smu:ð] _______________ ['stiki]_______________ [weit ənd ˈvɔlju:m]• _______________ ['sentiˌmi:tə] =(cm)• _______________ ['miliˌmi:tə] =mm• _______________ ['kiləˌmi:tə]=km• _______________ [intʃ] (1 _____ =25.4mm)• _______________ [mail] (1_____=1.609km)• _______________ [ɡræm]=g• _______________ [ˈkiləgræm] =kg.• _______________[paund] (1______=0.4536kg)• _______________ [tʌn](1______ =1000kg)

    • 3

      p>&#91;span&#93;&#91;span&#93;在下列指标中,用来表示材料&#91;/&#93;&#91;/&#93;&#91;span&#93;&#91;span&#93;塑性&#91;/&#93;&#91;/&#93;&#91;span&#93;&#91;span&#93;的指标是(&#91;/&#93;&#91;/&#93;&#91;span&#93; &#91;/&#93;&#91;span&#93; &#91;span&#93;)&#91;/&#93;&#91;/&#93;[br][/br]</p A: p>Z B: HRC C: R<sub>m</su D: R<sub>eH</su

    • 4

      float f&#91;&#93;&#91;&#93;&#91;&#93; = new float&#91;3&#93;&#91;&#93;&#91;&#93;;  float f0 = 1.0f;  float&#91;&#93;&#91;&#93; farray = new float&#91;1&#93;&#91;1&#93;;  What is valid?() A:  f[0] = f0; B:  f[0] = farray; C:  f[0] = farray[0]; D:  f[0] = farray[0][0];