() end of the street there is a post office.A、AtB、BeC、ByD、To

题目
() end of the street there is a post office.

A、At

B、Be

C、By

D、To


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更多“() end of the street there is a post office. ”相关问题
  • 第1题:

    An Intranet is(71)the application of Internet technology within an internal or closed user group.Internets are company(72)and do not have a(73)connection to the Internet.Used properly an Internet is highly effective corporate tool,capable of regularly(74)information to empower the workforce with the information needed to perform. their roles.Used in this way,Internet represent a step towards the(75)office.

    (58)

    A.simple

    B.simply

    C.single

    D.singly


    正确答案:B

  • 第2题:

    对树中的一个结点,在先根序列中序号为pre(x),在后根序列中序号为post(x),若树中x是结点y的祖先,下列条件中正确的是

    A.pre(x)<pre(y)和post(x)<post(y)

    B.pre(x)<pre(y)和post(x)>post(y)

    C.pre(x)>pre(y)和post(x)<post(y)

    D.pre(x)>pre(y)和post(x)>post(y)


    正确答案:B
    解析:很显然,在前根序列遍历时,祖先的结点若先被访问到,序号必然小,在后根序列遍历时,祖先的结点若后被访问到,序号必然大。

  • 第3题:

    An Intranet is (71) the application of Internet technology within an internal or closed user group.Internets are company and not do not have a (72) connection to the Internet.Usedproperly an Internet is highly effective corporate tool,capable of regularly (73) information toempower the workforce with the information needed to perform. their roles.Used in this Way,Internet represent a step towards the (74) office.

    (84)

    A.simple

    B.simply

    C.singlc

    D.singly


    正确答案:B

  • 第4题:

    对树中的一个结点,在先根序列中序号为pre(x),在后根序列中序号为post(x),若树中 x是结点y的祖先,下列条件中正确的是_________。

    A.pre(x)<pre(y)和post(x)<post(y)

    B.pre(x)<pre(y)和post(x)>post(y)

    C.pre(x)>pre(y)和post(x)<post(y)

    D.pre(x)>pre(y)和post(x)>post(y)


    正确答案:B
    解析:在前根序列遍历时,祖先的结点若先被访问到,序号必然小,在后根序列遍历时,祖先的结点若后被访问到,序号必然大。

  • 第5题:

    对树中的一个节点x,在先根序列中的序号为pre(x),在后根序列中的序号为post(x)。若树中节点x是节点y的祖先,下列四个条件哪个条件正确? ______。

    A.pre(x)<pre(y)和post(x)<post(y)

    B.pre(x)<pre(y)和post(x)>post(y)

    C.pre(x)>pre(y)和post(x)<post(y)

    D.pre(x)>pre(y)和post(x)>post(y)


    正确答案:B

  • 第6题:

    下列json表示的对象定义正确的是:

    A.var str1={‘name’:‘ls’,’addr’:{‘city’:’bj’,’street’:’ca’}};

    B.var str1={‘name’:‘ls’,’addr’:{‘city’:bj,’street’:’ca’}};

    C.var str={‘study’:‘english’,’computer’:20};

    D.var str={‘study’:english,’computer’:20};


    AC