设备某光板收到RLOS告警,可能原因()
A、该光板连接的光缆断
B、对端设备光板发模块损坏
C、本端光板坏
D、由AU-AIS告警引发
参考答案:A, B, C
I have _________ the habit of drinking a cup of water before going to bed. [ ]
A. got to
B. got into
C. fell to
D. put into
颅骨共23块,其中脑颅骨的块数是
A.4块
B.6块
C.8块
D.10块
E.15块