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问题 多项选择题

中兴OTN设备电层1+1保护触发条件包括（）

A、SNCP/I的触发条件应为ODUk的服务层失效

B、SNCP/N的触发条件应为ODUk层及其服务层失效

C、SNCP/S的触发条件应为ODUk-TCM层及其服务层失效

D、不支持SNCP/I/N/S保护触发

答案

参考答案：A, B, C

填空题

把0.37 ×0.28 的积保留两位小数是（    ）。
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填空题

语法填空。

      A motto is a sentence or a phrase 1.________can inspire us especially when we are

2.________(face) with difficulties.Many of us have our mottoes，such as “Where there is

a will，there is a way.” Or “Nothing is difficult if you put your heart into it.”，and so on.My

motto is “God helps those who help 3.________.” Sometimes I am lazy and don't want to

make efforts 4.________(work) hard，5.______ the moment I think of my motto I will get

energetic again and devote myself 6.________what I am doing.I write my motto 7.________

I can see it easily.Every time I fail in my exam and begin to lose heart，the sight of my motto

inspires me with much 8.______(confident)．My motto also makes me become 9.________

independent person.That is to say，I won't rely on others easily.My friends，what is your

motto? If you still haven't got a motto，please choose 10.________ because a motto can have

a great effect on you.
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