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【多选题】
一个具有6个顶点的图的邻接矩阵各行依次为110000,110100,001100,011100,000011,000011。在等价关系顶点与顶点之间有通路的关系下,1号顶点与哪些顶点是等价的?A.
2
B.
3
C.
4
D.
5
E.
6
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【简答题】It has been proved that the geodesic dome is ______ human shelter.
【单选题】It has been proved________violence on television has a bad effect on the development of children. [ ]
A.
whether
B.
because
C.
when
D.
that
【单选题】It has been proved _______ violence on television has a bad effect on children.
A.
whether
B.
because
C.
what
D.
that
【单选题】Nothing that he suggested _____ to be of any use.
A.
prove
B.
proved
C.
proving
D.
has been proved
【单选题】One is not guilty until he ______.
A.
has proved
B.
has been proved
C.
is proved
D.
will be proved
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