单项选择题
Which of the following cable standards has a maximum effective range of 25 meters (82 feet)?()
A.1000Base-CX
B.1000Base-T
C.1000Base-LX
D.1000Base-SX
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单项选择题
A.1000Base-CX
B.1000Base-T
C.1000Base-LX
D.1000Base-SX
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