Which of the following is closest in meaning with the sentence: "I am feeling black"?
A. I am sad.
B. I am feeling well.
C. I am dirty.
D. I am very tired.
38.答案为A 通过第二段...black is depressing可知黑色使人阴郁。
第1题:
-Haveyoufoundtheinformationaboutthefamouspeople______youcanuseforthereport?
-Notyet.I’llsearchsomeontheInternet.
A.who
B.what
C.whom
D.which
第2题:
A. followed,followed
B. followed,following
C. following,followed
D. following,following
第3题:
A:I'm keen on football.
B: So ( )I.
A. have
B. do
C. am
第4题:
A、who
B、how
C、which
第5题:
A.have
B.do
C.am
第6题:
最小生成树
A.Prim算法:
procedure prim(v0:integer);
var
lowcost,closest:array[1..maxn] of integer;
i,j,k,min:integer;
begin
for i:=1 to n do begin
lowcost[i]:=cost[v0,i];
closest[i]:=v0;
end;
for i:=1 to n-1 do begin
{寻找离生成树最近的未加入顶点k}
min:=maxlongint;
for j:=1 to n do
if (lowcost[j]<min) and (lowcost[j]<>0) then begin
min:=lowcost[j];
k:=j;
end;
lowcost[k]:=0; {将顶点k加入生成树}
{生成树中增加一条新的边k到closest[k]}
{修正各点的lowcost和closest值}
for j:=1 to n do
if cost[k,j]<lwocost[j] then begin
lowcost[j]:=cost[k,j];
closest[j]:=k;
end;
end;
end;{prim}