• 2022-05-29
    Thereason()thischangeisthatI’dliketofindafavoritejob.
    A: for
    B: of
    C: to
  • B

    内容

    • 0

      Thereason why the train has stopped was_________the old bridge broke downunexpectedly. A: because B: that C: when D: why

    • 1

      Thereason shehas been sucha success isbecause shenevergives up. A B C D A: reason she B: a success is C: because she D: gives up

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      John Smith has been ______ at the airport for an hour and he felt anxious.So his guide from China Travel Service was asking the reception desk about thereason for the ______. The staff told him that it was ______ the ______ weather, and according to the weather report, the fog would be ______ one hour later.Then the guide suggested a way to ______, that is, to look ______ the shops andstores in the airport lobby.

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      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

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      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)}