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【单选题】
在有n个节点组成的拓扑结构的计算机网络中，物理链路的条数有（ ）A.
n-1
B.
n
C.
n+1
D.
2n
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A.
It is an annual conference.
B.
It is being held in a university.
C.
It is sponsored by a private corporation.
D.
It is focussed exclusively on x-ray scattering technology.
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A.
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B.
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A.
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B.
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C.
stylish
D.
tragic
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A.
正确
B.
错误
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【单选题】请用地点定桩法在4分钟内记忆数字。 8 9 9 1 3 7 6 3 6 6 7 2 2 9 3 6 2 9 2 8 6 3 7 8 6 8 9 0 4 7 9 7 2 5 4 5 5 3 0 8
A.
已背
B.
未背
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