一个10BaseFx链路需要多少光纤信道()。
A.1
B.2
C.4
D.10
参考答案:B
Kitty’s pencil case is ______ Amy’s. It’s also very small. [ ]
A. the same color as
B. different from
C. alike
D. the same size as
融沉补偿注浆宜选用哪种材料?应遵循哪些原则?