【单选题】
T1S0是指()
A、颈胸腰骶椎矫形器
B、胸腰骶椎矫形器
C、腰骶椎矫形器
D、脊柱侧弯矫形器
A、颈胸腰骶椎矫形器
B、胸腰骶椎矫形器
C、腰骶椎矫形器
D、脊柱侧弯矫形器
A、A. R1 has EIGRP neighbors reachable via S0/0 and S0/1, but not via S0/2, so it is not included. B、B. S0/2 may currently be in a state other than up/up. C、C. The network 10.0.0.0 command requires the use of mask 255.0.0.0 due to EIGRP being classful by default. D、D. S0/2 may be configured as a passive inter face.