内蒙古备考2021年研究生考试需要注意什么

下面说法正确的是（　　）

A.学习障碍儿童存在性别差异
B.语言障碍是学习障碍的一个重要症状
C.学习障碍儿童不存在性别差异
D.男孩比女孩更容易产生学习障碍

在进行乳房物理检查中，不正确的是（）

A.用手指掌面按外上、外下、内下、内上、中央的顺序检查乳房
B.先检査健侧再检查患侧乳房
C.用手指轻捏乳房及肿物，以体会肿物情况
D.应检查腋窝淋巴结情况和有无乳头溢液

在操作技能的学习过程中，主要依靠视觉控制，各个动作要素之间的协调性差，常常出现顾此失彼现象的阶段是

A.操作定向
B.操作模仿
C.操作整合
D.操作熟练

Text3 In the past several years,as the nascent medium of virtual reality has come into its own,scientists and creators have begun to explore its potential effects on the human mind.Some are undoubtedly positive-as,for instance,when the technology is used to help war veterans overcome posttraumatic stress disorder,or as a means to expand a person's capacity for compassion.But the immediacy of virtual reality has a dark side,too.Several months ago,Michael Madary and Thomas K.Metzinger,researchers from the Johannes Gutenberg University of Mainz,in Germany,published a series of recommendations on the ethical design and implementation of virtual reality.Their appraisal of the medium's psychological force is both studious and foreboding."The power of virtual reality to induce particular kinds of emotions could be used deliberately to cause suffering,"they write."Conceivably,the suffering could be so extreme as to be considered torture."In filmmaking,the director must perform a kind of seduction of dread,leading viewers through an escalating series of psychological states.In the immersive world of virtual reality,no such dance is required.Part of the power of virtual reality-based horror comes from the fact that the director knows exactly where the viewer is looking."With that knowledge,we can play mind tricks or trigger events based on the gaze,"Jon Hibbins,the director of Psytec Games,a London-based virtual reality studio,said.For instance,he said,in Psytec's most recent fantasy-horror title,Crystal RiR,"a monster can appear in a vent only when the player looks at the vent."Hibbins claims that,as viewers'brains are tricked into believing that they are physically present in a reality,the memories they form are much stronger than those made when watching so-called flat-screen media.To soften these memories,Hibbins and his team have introduced a slider into their game that allows players to control the intensity of the horror."'Normal'will be an average scare experience,"he said."You'Il hear voices in the distance,ghosts in the corridors,sound from the voids,and snakes in the corridors.'Extreme'introduces jump scares,such as ghost figures that run through your body.It really does offer everyone an option."Stephan said,"Long-term,perhaps it's a case of building literacy in players and viewers so they understand when the scares are coming.For now,I think that means taking it slow."31.Virtual reality was originally designed as

A.a treatment ofveterans'injury after wars.
B.an exploration of the myth in human mind.
C.a way to raise sympathy for others.
D.a remedy for mental disorder caused by stress