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[不定项选择题]共用题干
第二篇
Download Knowledge Directly to Your Brain
For the first time,researchers have been able to hack into the process of learning in the biain,using
induced brain patterns to create a learned behavior. It's not quite as advanced as an instant Kung-fu down-
load,and it's not as sleek as cognitive inception,but it's still an important finding that could lead to new
teaching and rehabilitation techniques.
Future therapies could decode the brain activity patterns of an athlete or a musician,and use them as a
benchmark for teaching another person a new activity,according to the researchers.
Scientists from Boston University and ATR Computational Neuroscience Laboratories in Kyoto used
functional magnetic resonance imaging,or fMRI,to study the learning process.They were examining the
adult brain's aptitude for visual perceptual learning,or VPL,in which repetitive training improves a per-
son's performance on a particular task.Whether adults can do this as well as young people has been an on-
going debate in neuroscience.
Led by BU neuroscientist Takeo Watanabe,researchers used a method called decoded fMRI neurofeed-
back to stimulate the visual cortex.First they showed participants circles at different orientations.Then they
used fMRI to watch the participants'brain activity.The researchers were then able to train the participants to
recreate this visual cortex activity.
The volunteers were again placed in MRI machines and asked to visualize shapes of certain colors.The
participants were asked to"somehow regulate activity in the posterior part of the brain"to make a solid green
disc as large as they could.They were told they would get a paid bonus proportional to the size of this disc,
but they weren't told anything about what the disc meant.The researchers watched the participants'brain
activity and monitored the activation patterns in their visual cortices.
"Participants can be trained to control the overall mean activation of an entire brain region,"the study
authors write,"or the adtivation in one region relative to that in another region."
This worked even when test subjects were not aware of what they were learning,the researchers said.
"The most surprising thing in this study is that mere inductions of neural activation patterns corresponding to
a specific visual feature led to visual performance improvement on the visual feature,without presenting the fea-
ture or subjects' awareness of what was to be learned,"Watanabe said in a statement.
Watanabe and colleagues said this method can be a powerful tool.
"It can'incept' a person to acquire new learning, skills,or memory,or possibly to restore skills or
knowledge that has been damaged through accident,disease,or aging,without a person's awareness of what
is learned or memorized,"they write.
What helps a person to do a particular task better in visual perceptual learning?
A.Testing.
B.Encouragement.
C.Self-assessment.
D.Repetition.
[单项选择]SNMPc软件支持的4个内置TCP服务是()。
A. FTP、SMTP、WEB和TELNET
B. DHCP、SMTP、WEB和TELENET
C. DNS、SMTP、WEB和TELNET
D. TFTP、SMTP、WEB和TELENET
[判断题]泡沫渣形成的主要原因是炉渣的碱度高。( )
A.正确
B.错误
[单选题]《行规》道岔除雪按站区除雪分工负责。每年入冬前各除雪单位对所负责的道岔扒掏道岔枕盒,次年春融时负责回填。道岔扒掏只限扒掏转辙部分尖轨尖端至最后拉杆内适当地点(含可动心轨),深度为轨底向下100mm左右,宽度不超过轨枕两端向内侧100mm。扒掏、回填要由( )(外锁闭道岔还应由电务部门)协助、监督、检查和验收。
A.工务部门
B.车务部门
C.电务部门
D.供电部门
[单选题]利用深井.烟热.化工等装置开展高温.浓烟.黑暗.恐怖等模拟训练时,必须利用监控设备掌握受训人员情况,严格( )起爆物和燃油.燃气的使用,防止发生意外事故。
A.控制
B.按照
C.模拟
D.放任
[单项选择]治疗下焦湿热,宜用()
A. 煅石膏
B. 夏枯草
C. 天花粉
D. 栀子
E. 黄柏
[单项选择]牡丹皮与赤芍的共同功效是()
A. 清热解毒,利尿
B. 清热解毒,排脓
C. 清热凉血,散瘀
D. 燥湿泻火,凉血
E. 清热凉血,滋阴
[多选题]突触传递有何特征( )
A. 单向传递
B. 总和
C. 相对不易疲劳
D. 中枢延搁
E. 对内环境变化敏感
[单选题]患者男,55岁。2天前发生急性心肌梗死.1小时前突发喘憋、咳粉红泡沫痰,不能平卧,既往体检时心脏听诊无异常发现。体检BP90/60mmHg,心尖部可闻及4/6级粗糙的收缩期杂音,双肺满布中小水泡音及哮鸣音。该患者喘憋最可能的原因是
A.心肌梗死后综合征
B.心脏乳头肌断裂
C.心脏游离壁破裂
D.心室膨胀瘤
E.肺动脉栓塞
[判断题]混料器停机可直接打开接触行程开关的混料器顶盖即可。
[单选题]关于纳税期限的说法,正确的是( )。
A.同一税种的纳税人的纳税期限相同
B.增值税与企业所得税的纳税期限相同
C.纳税人的具体纳税期限由主管税务机关核定
D.不同生产规模的纳税人的纳税期限相同
[单选题]单选"以下哪些情况要审慎开展跨境资金池业务:
A. 境外企业入池账户在我行开立FT账户做过反洗钱风险评级
B. 入池企业有“投资”、“投资管理”等资本运作、类金融企业的
C. 境内企业入池账户是非我行账户
D. 入池企业为新经济企业等"
[单项选择]患肢不出现“红线”,但有条形触痛区的是()
A. 厌氧性链球菌性蜂窝织炎
B. 深层急性淋巴管炎
C. 浅层急性淋巴管炎
D. 急性淋巴管炎
E. 丹毒
[单选题]疏散旅客到达安全地带后,列车长、乘警要以( )为单元详细清点旅客人数,对重点及特殊旅客情况进行逐人登记,维护秩序,做好稳定工作。
A.工作人员分工
B.车厢
C.集结地点
D.旅客年龄层次
[判断题]公民.法人或者其他组织对行政机关实施的行政许可结果不服的,有权依法申请行政复议或者提起行政诉讼。( )
A.正确
B.错误
[判断题]列控中心与LEU通信的4个通信协议转换接口模块可以互换
A.正确
B.错误
[多项选择]下列关于攘法的描述中正确的是()
A. 可用于虚证
B. 前臂主动做推旋动作
C. 前滚和回滚时着力轻重之比为3:1
D. 手法频率为120~160次/min
E. 适用于全身各部
[单项选择]The store had to ( ) a number of clerks because sales were down.
A. lay out
B. lay off
C. lay aside
D. lay down
[单项选择]属于所有者权益的是( )。
A. 递延所得税
B. 资本公积
C. 长期应付款
D. 存货
[判断题]υmax ≤120 km/h的线路,1 m直尺测量矢度,当钢轨硬弯大于0.5mm时,应及时处理。( )
A.正确
B.错误
[判断题]事故发生单位主要负责人受到刑事处罚或者撤职处分的,自刑罚执行完毕或者受处分之日起,3年内不得担任任何生产经营单位的主要负责人。( )
A.正确
B.错误
[单选题]患者,男,70岁。胸痛心悸伴晕厥1次。体检示:BP140/80mmHg,HR72次/分,早搏2—3次/分。收入ICU后,心电监护见室颤。拟使用电除颤,下列那一项是首次双向波除颤最常用的能量( )
A.100J
B.200J
C.300J
D.150J
E.360J
[简答题]
在考生文件夹下有一个数据库文件“samp2.mdb”,里面已经设计好了表对象“档案表”和“水费”,请按以下要求完成设计。
创建一个查询,查找水费为零的记录,并显示“姓名”,将所建查询命名为“qT3”。
[多项选择]老年男性,65岁,既往有胆囊结石病史,因上腹痛4小时由家属送诊,查体:意识淡漠,血压90/50mmHg,右上腹部肌紧张。可能采取的手术方式为()
A. 胆囊切除
B. 胃穿孔修补
C. 肠切除吻合
D. 胆管切开取石、T管引流
E. 胰腺切除
F. 胰、十二指肠切除
[单项选择]在下列合同中,()合同是可变更的合同。
A. 一方以欺诈、胁迫的手段订立合同,损害国家利益的
B. 以合法活动掩盖 非法目的的
C. 因重大误解而订立的
D. 损害社会公共利益的
[单项选择]肾小球可以滤过血浆是依靠( )
A. 有效渗透压作用
B. 有效滤过压作用
C. 逆流倍增作用
D. 主动转运
E. 易化扩散
[单项选择]电击伤并发症不包括下列哪项()。
A. 脊椎压缩性骨折或肩关节脱位
B. 前臂腔隙综合征
C. 烧伤处原发细菌感染
D. 神经源性肺水肿
E. 鼓膜破裂
[判断题]倒闸操作分为:监护操作、单人操作和运检人员操作。
A.正确
B.错误
[单选题]成人,出现腰痛数月,行走时双手扶腰,伴有盗汗,午后潮热、消瘦、食欲缺乏、全身乏力。应首先考虑的诊断是
A.腰椎间盘突出症
B.腰肌劳损
C.腰椎结核
D.髋关节结核
E.脊柱骨退行性变
[单选题]根据《建筑施工企业安全生产许可证管理规定》,建筑施工企业安全生产许可证有效期为()年。
A.1
B.2
C.3
D.5