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【单选题】
假设—个有n个顶点和e条弧的有向图用邻接表表示，则删除与某个顶点vi(下标)相关的所有弧的时间复杂度是(55)。A.
O(n)
B.
O(e)
C.
O(n+e)
D.
O(n*e)
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【单选题】麝香的药用部位是
A.
鹿科动物林麝、马麝或原麝成熟雌体香囊中的干燥分泌物
B.
鹿科动物林麝、马麝或原麝成熟雌体口腔的干燥分泌物
C.
鹿科动物林麝、马麝或原麝成熟雄体香囊中的干燥分泌物
D.
鹿科动物林麝、马麝或原麝成熟雌体口腔的干燥分泌物
【单选题】In fact, Earth does not have infinite resources as people believe to have.
A.
Y
B.
N
C.
NG
【简答题】The fact that most Kenyans do not have a bank account.
【单选题】Although they are twins, they have nothing in _________.
A.
usual
B.
common
C.
always
D.
fact
【单选题】refers to the fact that language provides opportunities for sending messages that have never been sent before and for understanding novel messages.
A.
Arbitrariness
B.
Duality
C.
Creativity
D.
Displacement
【简答题】the fact that some companies have learnt from the mistakes of others
【单选题】Sometimes children have trouble______fact from fiction and may believe that such things actually exist
A.
to separate
B.
separating
C.
for separating
D.
of separating
【单选题】More and more people have come to be aware of the fact that they have______ balanced diet and give themselves_____ room in their daily life for necessary exercise.
A.
a; /
B.
the; a
C.
the; the
D.
/; a
【简答题】s______ v. to run or move swiftly; to glide or skim along easily
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