更多“Mark Twain was at his best when he wrote about children.() ”相关问题
  • 第1题:

    I must have thrown away ( ) by mistake.

    A、his’

    B、his

    C、he’s

    D、he


    参考答案:B

  • 第2题:

    最短路径

    A.标号法求解单源点最短路径:

    var

    a:array[1..maxn,1..maxn] of integer;

    b:array[1..maxn] of integer; {b[i]指顶点i到源点的最短路径}

    mark:array[1..maxn] of boolean;

    procedure bhf;

    var

    best,best_j:integer;


    正确答案:

     

    begin
    fillchar(mark,sizeof(mark),false);
    mark[1]:=true; b[1]:=0;{1为源点}
    repeat
    best:=0;
    for i:=1 to n do
    If mark[i] then {对每一个已计算出最短路径的点}
    for j:=1 to n do
    if (not mark[j]) and (a[i,j]>0) then
    if (best=0) or (b[i]+a[i,j]<best) then begin
    best:=b[i]+a[i,j]; best_j:=j;
    end;
    if best>0 then begin
    b[best_j]:=best;mark[best_j]:=true;
    end;
    until best=0;
    end;{bhf}

  • 第3题:

    My father likes playing golf;he’s really enthusiastic( )it.
    about


    答案:
    解析:
    be enthusiastic about“热衷于”。

  • 第4题:

    A well () job description can answer a lot of questions from job seekers.

    A.written

    B.write

    C.wrote


    正确答案:A

  • 第5题:

    You are signing on a deck officer,who will be designated as one of the GMDSS operators,before sailing foreign.Which statement is TRUE ________.

    A.He/she must have an STCW certificate endorsed as“Valid for Service on Vessels Operating in the GMDSS System”

    B.He/she must present either an FCC-issued license or a Coast Guard-issued license

    C.You must consult the“List of Qualifications”on the reverse of his/her FCC-issued license

    D.His/her Merchant Mariners Document must have an added endorsement as “Radio Electronics Officer”


    正确答案:A

  • 第6题:

    The working parent is not willing to listen to her (his) four-year-old child talking about hissandbox games because she (he) is___________.

    A.boring
    B.very tired
    C.busy
    D.angry

    答案:B
    解析:
    通读第四段,注意短语“fartoo beaten down”,可知父母每天工作非常辛苦和疲惫。所以和孩子的交流沟通少了。正确答案为B。A、C、D都不符合题意。