Many consider the later part of life to be the best time of living,because______.
A.they have a very good understanding of themselves and the outside world
B.they consider their life has been a successful one
C.they have come through the battle of life safely
D.they have nothing to do all day long only to watch their grand children growing up around them
第3题
A.传输媒体
B.传输介质
C.距离限制
D.时间限制
第5题
A.a
B.b
C.ab
D.abc
第6题
10Mbps以太网中10Base2的线缆最大长度是()米。
A.500
B.185
C.100
D.2000
第7题
A.10Base2使用同轴电缆,而10Base5使用双绞线
B.10Base2使用CSMA/CD技术,而10Base5使用需求优先权技术
C.10Base2使用总线拓扑结构,而10Base5使用环形拓扑结构
D.0Base2使用细同轴电缆,而10Base5使用粗同轴电缆
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