The physical layer of the OSI reference model is not defined ().
A.
Hardware address
B.
bit transmission
C.
level
D.
Physical Interface
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【简答题】完形填空。 I used to watch her from my kitchen window. She seemed so 1 as she muscled her way through the crowd of boys on the playground. The school was 2 the street from our home and I would often 3 the ...