• 2022-06-06
    Itseems()tochangethetimetablesooften.
    A: unlogical
    B: imlogical
    C: inlogical
    D: illogical
  • D

    内容

    • 0

      In a speech,a speaker who attempts to establish goodwill in the introduction of a speech is aiming to convince the audience that she or he __________. A: is willing to take questions at the end of the speech B: has the best interest of the audience in mind C: will avoid using illogical arguments D: is qualified to speak on the topic

    • 1

      According to your textbook, a speaker who attempts to establish goodwill in the introduction of a speech is aiming to convince the audience that she or he __________. A: is willing to take questions at the end of the speech B: has the best interest of the audience in mind C: will avoid using illogical arguments D: is qualified to speak on the topic

    • 2

      20A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、120、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、130、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、140、A、B、C、D、A

    • 3

      以下集合A={a,b,c,d}上关系,其中( )是等价关系。 A: {(a,a),(a,d),(b,b),(b,c),(c,b),(c,c),(d,a) } B: {(a,a),(a,b),(b,a),(b,b),(c,c),(c,d),(d,c),(d,d)} C: {(a,a),(b,b),(b,c),(c,b),(c,c),(d,a),(d,d)} D: {(a,a),(a,b),(b,a),(b,b),(b,c),(c,b),(c,c),(d,d)}

    • 4

      设A={a,b,c,{a,c}},B={a,c,d},则B-A=____,A⊕B=____。 A: {a,c,d}, {{a,c},b,d} B: {d}, {a,c,b,d} C: {d}, {{a,c},b,d} D: {d}, {a,c}