Your team has prepared a CPM schedule for your review. You notice that one node has six inputs (including two dummy activities) and four outputs (which include one dummy activity). Select the correct statement from the following:A.This is a valid represen

题目

Your team has prepared a CPM schedule for your review. You notice that one node has six inputs (including two dummy activities) and four outputs (which include one dummy activity). Select the correct statement from the following:

A.This is a valid representation if the logic is correct.

B.This is invalid because a node can have a maximum of one dummy input representation if the logic is correct.

C.This is invalid because nodes cannot have both dummy inputs and dummy outputs.

D.This is a invalid because the number of outputs must equal the number of inputs.

E.This is invalid because a maximum of two inputs and two outputs are allowed using the critical path method.


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  • 第1题:

    Ours is finer than ( ).

    A、yours or his

    B、yours or him

    C、your's or his

    D、you or he


    参考答案:A

  • 第2题:

    Merry Christmas, George! Here is a card for ________, with ________ best withes.

    A.you…your

    B.you…our

    C.us…our

    D.us…your


    参考答案:B

  • 第3题:

    ( ) – Is Miss White __________ English teacher, Maria?

    – No, she teaches __________ geography.

    A.your;my

    B.you;mine

    C.you;us

    D.your;us


    正确答案:D

  • 第4题:

    What's ( )job? Are ( ) British?

    A. your, your

    B. you, your

    C. your, you


    正确答案:C

  • 第5题:

    Whichfouraretrue?()

    A.Has-arelationshipsshouldneverbeencapsulated.

    B.Has-arelationshipsshouldbeimplementedusinginheritance.

    C.Has-arelationshipscanbeimplementedusinginstancevariables.

    D.Is-arelationshipscanbeimplementedusingtheextendskeyword.

    E.Is-arelationshipscanbeimplementedusingtheimplementskeyword.

    F.Anarrayoracollectioncanbeusedtoimplementaone-to-manyhas-arelationship.

    G.TherelationshipbetweenMovieandActressisanexampleofanis-arelationship.


    参考答案:C, D, E, F

  • 第6题:

    48.

    A. my

    B. his

    C. their

    D. your


    正确答案:C
    48.C【解析】由本文及实际生活均可知很多中国学生高中期间不工作,而美国学生喜欢在他们空闲时间馓兼职工作。