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【单选题】
监控信息单向上行传输,监控数据通过BTS上的外部告警单元经由BSC传送到OMC。监控数据有限,一般为开关量,可以实现遥信功能。以上描述的为()A.
独立监控子系统
B.
干接点监控子系统
C.
操作维护中心
D.
动力支出系统
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【简答题】某标准直齿圆柱齿轮,已知齿距 p =12.56mm ,齿数 z =2 0 ,正常齿制。求该齿轮的分度圆直径 d 、齿顶圆直径 d a 、 、齿根圆直径 d f 、基圆直径 d b 、 、齿高 h 及齿厚 s 。 ( cos20 o≈ 0.9 4)
【简答题】某标准直齿圆柱齿轮,已知齿距 p =12.56mm ,齿数 z =2 0 ,正常齿制。求该齿轮的分度圆直径 d 、齿顶圆直径 d a 、 、齿根圆直径 d f 、基圆直径 d b 、 、齿高 h 及齿厚 s 。 ( cos20 o≈ 0.9 4) 解答:
【单选题】How can we acquire wisdom in our private lives?
A.
We can develop wisdom by dedicating ourselves to heroic deeds.
B.
We can learn acting smartly by not taking on more than we can cope with.
C.
We can instill fragment of wisdom by eliminating people’s self-centeredness.
D.
Both b and c.
【简答题】According to the author, “wisdom” is the ability to ________. A) carefully consider the bad effects of any kind of research work B) give each important problem some careful consideration C) acquire a ...
【单选题】According to the author, all of the following can truly be said about wisdom EXCEPT that ______.
A.
wisdom may be thought of as a special form. of abilities and knowledge completely developed with life experience.
B.
wisdom may still grow even when the process of mental aging started.
C.
wisdom is superior in importance to mental skills such as inductive reasoning and spatial skills.
D.
wisdom makes up an important part of brain power.
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