OC是一创客空间，旨在帮助思维活跃的创客们提高创作水平。0C并不设置固定的主题，亦没有设置职能部门，而是采用了社区自治的运行方式，其结构以工作流程为中心。0C选用免费的Arduin0软硬件平台为创客创新提供支持。OC聚集创客形成了几个兴趣团体，为之建立了网上社区以增进交流，请当地工坊为这些兴趣团体提供专业工艺辅助，还邀请企业家与这些兴趣团体对接。

请回答：

(1)什么是创客?说明0C创客空间发挥作用的形式。

(2)结合0C分析刨客空间的运行模式。

下列属于物联网感知层关键技术的是（）

简述要约与要约邀请的区别。

阐述我国《电子签名法》规定对电子认证服务采用强制性许可制度的理由。

Relaxationtherapy(=treatment).Ifyoureadthesentenceoutloud,yourbloodpressurewillgoup.Ifyoutalktoanotherperson,itwillgostillhigher.Ifthetalkiswithyourboss,yourpressurewillgoevenhigher.Ifyouspeaktosomeoneoftheoppositesex,yourpressuremayshowlesschangeifyou’remarriedthanifyou’resingle.Dozensoftimeseachday,yourbloodpressurechangeswithwhatyou’refeelinganddoing.These“upsanddowns”takeplaceineveryone,buttheyaremoresevereinpeoplewithhighbloodpressure.Thatdiscoveryisthebasisforthenewesttherapy:controllingbloodpressurebylearningskillstocontroleverydaystress.Manypatientscontroltheirbloodpressurewiththerelaxationresponse.Thistakesfoursimplethings:aquietenvironment,acomfortableposition(sittingorlyingdown),therepeatingofaword,prayerorphraseeachtimeyoubreatheandhavingnoneofotherthoughts.Somethingremarkablehappenswhenyoudothis,accordingtoresearchinBoston.Relaxationofthemindandbodyhastheeffectthatsomeblood-pressurepillswouldhave.What’smore,thebloodpressurestayslower,justasitwouldwithapill,afteryouhavestoppedtherelaxationandhavereturnedtothestressofdailylife.

31.Thefirstparagraphtellsusthereasonwhyyourbloodpressuregoesupisthat__________.

A.youreadaloudasentence

B.themanyoutalktoisyourboss

C.you’renotmarried

D.you’renervous

32.Whichofthefollowingstatementsisnottrue?

A.One’sbloodpressurechangesmanytimeseveryday.

B.Yourbloodpressurechangeswithyourfeelings.

C.Whenyou’redoingdifferentthings,yourbloodpressure,perhaps,isdifferent.

D.Thechangesofbloodpressureonlyhappentopeoplewithhighbloodpressure.

33.Thelastparagraphtellsusrelaxationtherapy__________.

A.needsanewkindofmedicine

B.hasthesameeffectasblood-pressurepills

C.ismorethanblood-pressurepills

D.isworkingandcanbeimproved