下列属于物联网感知层关键技术的是（）

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

以下支付宝的功能可列入担保交易模式的是（）

Neitherofthedriverswhoarebeingheldbythepolice__________whomtoblameforhistrouble.

Imadeupmymindthatundernocircumstances__________tosuchprinciple.