问题
多项选择题
根据《SDH本地网光缆传输工程验收规范》，设备告警功能检查项目包括（）
A.电源故障
B.信号丢失
C.帧失步
D.信号大误码
E.参考时钟失效
答案
参考答案：A, B, C, D, E
搜题请搜索小程序“爱下问搜题”
根据《SDH本地网光缆传输工程验收规范》，设备告警功能检查项目包括（）
A.电源故障
B.信号丢失
C.帧失步
D.信号大误码
E.参考时钟失效
参考答案：A, B, C, D, E
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| Amy is 13. She lives 1 her parents in Suzhou. She is in Grade 7. From Monday 2 Friday, she goes to school. And she usually 3 school clothes. There are lots of nice people in her class. Millie her best friend, always 4 games with her at lunchtime. They both enjoy 5 the songs of Jay Zhou. She is very busy now. Tomorrow is New Year's Day. They are going to 6 it in their classroom, 7 Amy and Millie are going to the supermarket. They want to buy some 8 : sweets, chocolates, lemons and pears for their classmates. Amy often ate chocolates before, but now she 9 eat them any more because she wants to be healthier. Millie loves pears. She is going to buy five 10 of them. | ||||
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