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That man ( ) at the bus stop for the last half hour.--- Shall I tell him that the last bus ( )A.has stood … has already goneB.has been standing… has already beenC.is standing… has already goneD.has been standing…has already gone

题目
That man ( ) at the bus stop for the last half hour.--- Shall I tell him that the last bus ( )

A.has stood … has already gone

B.has been standing… has already been

C.is standing… has already gone

D.has been standing…has already gone


相似考题
更多“That man ( ) at the bus stop for the last half hour.--- Shall I tell him that the last bus ( ) ”相关问题
  • 第1题:

    数组q[M]存储一个循环队,first和last分别是首尾指针,如果使元素x进队操作的语句为“q[last]=x,last=(last+1)%m;”那么判断队满的条件是_____。

    A.last= =first

    B.last= =M-1

    C.(last+1)%m= =first

    D.last+1= =first


    (last- first+M)%M

  • 第2题:

    已知last指向单向简单链表的尾结点,将s所指结点加在表尾,正确的操作是____。

    A.s->next=s,last=s,last->next=NULL;

    B.last->next=s,s->next=NULL,last=s;

    C.s->next=NULL, last->next=s, s=last;

    D.s->next=last, last->next=NULL,last=s;


    B

  • 第3题:

    已知last指向单向简单链表的尾结点,将s所指结点加在表尾,不正确的操作是____。

    A.s->next=NULL, last->next=s,last=s;

    B.s->next=NULL, last->next=s, s=last;

    C.last->next=s,s->next=NULL,last=s;

    D.last->next=s,last=s,last->next=NULL;


    B

  • 第4题:

    已知last指向单向简单链表的尾结点,将s所指结点插入在表尾,正确的操作是____。

    A.s->next=s,last=s,last->next=NULL;

    B.last->next=s,s->next=NULL,last=s;

    C.s->next=NULL, last->next=s, s=last;

    D.s->next=last, last->next=NULL,last=s;


    B

  • 第5题:

    2、已知last指向单向简单链表的尾结点,将s所指结点插入在表尾,正确的操作是____。

    A.s->next=s,last=s,last->next=NULL;

    B.last->next=s,s->next=NULL,last=s;

    C.s->next=NULL, last->next=s, s=last;

    D.s->next=last, last->next=NULL,last=s;


    B

  • 第6题:

    已知wire [31:0] bus;则下列说法真确的是 。

    A.bus [31]是bus的最高有效位

    B.bus [0]是bus的最高有效位

    C.bus [31]是bus的最低有效位

    D.bus [0]是bus的最低有效位


    bus [31] 是 bus 的最高有效位;bus [0] 是 bus 的最高有效位