当前位置:考试网  > 试卷库  > 医卫类  > 医技职称  > 放射医学(士)  > 基础知识  >  X线量正比于
试题预览

X线量正比于

A、管电压值
B、曝光时间
C、焦-片距
D、物体-胶片距
E、以上都不是
查看答案
收藏
纠错
正确答案:

B

答案解析:

暂无解析

你可能感兴趣的试题

下面关于NFC和RFID的说法正确的是()

商品保管合同是一种_________ ,它是存货方和保管方为了加速商品流通,妥善保管商品,提高经济效益而签订的明确相互权利、义务关系的_________。

以下不属于传统储运企业寻求发展的方式的是()

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

SWIFT的全称是()

热门试题 更多>
试题分类: 三级(高级育婴师)
练习次数:0次
试题分类: 茶叶加工工
练习次数:0次
试题分类: 茶叶加工工
练习次数:1次
试题分类: 果树工
练习次数:1次
试题分类: 果树工
练习次数:0次
试题分类: 基础知识
练习次数:0次
试题分类: 三级(高级育婴师)
练习次数:0次
试题分类: 茶叶加工工
练习次数:7次
扫一扫,手机做题