保护区段也有侧防保护，当保护区段的侧防失效时，即使保护区段已被征用，但-我要搜题网

[单选题] 7342 GPON OLT NT支持（）种保护工作方式
A.主备方式
B.负载分担

[单选题]Text3 Sitting in the dark in his Blackpool bedsit,Harry Harper dialled 999.He told the operator that he had a bread knife at his throat and wanted to kill himself.A few years earlier,Mr Harper had been happily married and running a successful business.But after his wife committed suicide and his firm went bust,his life spiralled out of control.He started drinking and was admitted to a number of psychiatric hospitals.With little support,calling 999 became routine.Mr Harper is not alone.Many people who feel overwhelmed by their personal problems come to use the emergency services as a crutch.Data from NHS England show that around 5,000 people attend major A&E units more than 20 times each year.Some doctors nickname them"frequent flyers".Most regions have no strategy for dealing with these patients.In some places,frequent callers have been cut off from the ambulance service,or sent letters reprimanding them for wasting NHS money.Some have even been served with anti-social behaviour orders,which,whcn broken,result in jail time.Now a promising scheme aims to offer more effective help to the most frequent users,thereby reducing their reliance on the emergency services.It was started in 2013 by Rhian Monteith,then a paramedic in Blackpool,where health outcomes are among the worst in Britain.She asked local NHS managers for the names of the area's most frequently seen patients,and was handed a list of 23 people,including Mr Harper.Many,like him,were middle-aged folk with mental-health problems.Ms Monteith tried to give them a sense of"social inclusion and purpose".Often they talked about their social needs,rather than their medical symptoms.So she arranged community activities,like volunteer work,and help with practical matters such as applying for benefits.Those who often got worked up to a crisis point were taught coping mechanisms.The effect was quick and dramatic.Within months,A&E attendances,999 calls and hospital admissions all dropped by about 90%among the group.Many began to put their lives back together.The model was extended to about 300 patients in Blackpool over the following three years,saving the NHS over~2m.In 2017 it was rolled out by 36 0fEngland's 195 regional NHS commissioning groups.Implementing the programme is not without difficulty.Many of the most prolific users of A&E have no fixed address or are homeless.And they must agree to their data being shared across different govemment agencies,which is sometimes a hard sell.But the evidence so far is encouraging.The most recent winter crisis revealed just how stretched A&E departments are.Rerouting frequent flyers to the appropriate services would benefit besieged doctors and paramedics,as well as the patients themselves.34.Which of the following statement is right about the scheme?
A.NHS managers selected these patients randomly.
B.All of the 23 patients suffered mental-health problems.
C.Most ofthe 23 patients have got benefits.
D.It does not mainly focus on drug therapy.

[判断题]保护区段也有侧防保护，当保护区段的侧防失效时，即使保护区段已被征用，但在ATP系统的防护作用下，该进路的停车点将后移。

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