需要采取措施增加投资和发展增大的战略业务单位应处于()
A. 黄色地带
B. 红色地带
C. 绿色地带
D. C都可以
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Why is an OC-3 2F-BLSR not feasible?()
A. Switch times would exceed 50 ms for an OC-3 BLSR ring.
B. An equal amount of working and protect bandwidth is required.
C. DCC bandwidth is not large enough to handle K1/K2 processing.
D. There is not enough bandwidth in an OC-3 ring to justify BLSR protection.
键的作用不包括()。
A. 周向固定传递扭矩
B. 轴向固定传递轴向力
C. 实现轴向动连接
D. 实现装配定位