热门试题:
[填空题] Most people have no idea of the hard work and worry that go into the collecting of those fascinating birds and animals that they pay to see in the zoo. One of the questions that is always asked of me is 【B1】 I became an animal collector in the first 【B2】. The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any 【B3】 was not the conventional "mamma" or "daddy", 【B4】 the word "zoo", which I would 【B5】 over and over again with a shrill 【B6】 until someone, to 【B7】 me up, would take me to the zoo. When I 【B8】 a little older, we lived in Greece and I had a great 【B9】 of pets, ranging from owls to seahorses, and I spent all my spare time 【B10】 the countryside in search of fresh specimens to 【B11】 to my collection of pets. 【B12】 on I went for a year to the City Zoo, as a student 【B13】, to get experience of the large animals, such as lions, bears, bison and ostriches, 【B14】 were not easy to keep at home. When I
A. A．for
B．with
C．to
D．from
[填空题]黄斑病变患者，电生理检查可选（）、（）。
[单选题]碳化塔清洗时进入的气体我们工艺上称为( )？
A.中段气
B.下段气
C.空气
D.清洗气
[判断题]钢结构柱、梁安装完毕后,在未设置浇筑楼板用的压型钢板时,必须在钢梁上铺设适 量吊装和接头连接作业用的带扶手的走道板。
A.正确
B.错误
[判断题]在铁路道口、窄路、弯道、桥梁、隧道、涵洞等地方允许掉头。
[多选题]三维超声成像的技术种类分为（ ）
A.心电触发三维成像
B.经颅多普勒三维成像
C.动态三维成像
D.静态三维成像
E.电影回路三维成像
[单选题](47902)允许速度大于120km/h区段,钢轨硬弯用1m直尺测量,矢度不得大于( ) 。(1.0分)
A.0.3mm
B.0.5mm
C.1mm
D.2mm
[多选题]广告法禁止在以下哪些地方发布烟草广告?( )
A.大众传播媒介
B.公共场所
C.公共交通工具
D.户外
[单选题]行李仅指为方便旅客的旅行生活所限定的（ ）物品和残疾旅客代步所用的残疾人车。
A.生活
B.学习
C.旅行
D.少量
[单选题]引出线停电的操作顺序是依次拉开断路器、(____)。
A.线路侧隔离开关和母线侧隔离开关
B.母线侧隔离开关和线路侧隔离开关
C.断路器控制回路电源和母线侧隔离开关
D.断路器控制回路电源和线路侧隔离开关
[单选题]土地征收给予的土地补偿费归（ ）所有。
A.土地所有权人
B.土地使用权人
C.国家
D.农村集体成员
[单项选择]STIR技术优点在于（）
A. 信呈抑制的选择性较高
B. 由于TR缩短，扫描时间较短
C. 场强依赖性低，对磁场均匀度的要求也较低
D. 用于增强扫描可增加强化效果
E. 小的FOV扫描可取得好的脂肪抑制效果
[判断题]在电气设备上的作业均应设置监护人，一般监护人的安全技术等级应低于操作人
A.正确
B.错误
[单选题]虚拟电厂是聚合优化“（）”清洁发展的新一代智能控制技术和互动商业模式。
A.A、电源侧；
B.负荷侧；
C.三流合一；
D.源网荷储售服
[单项选择]建筑物综合布线系统的干线子系统______，水平子系统______。
A. 各个楼层接线间配线架到工作区信息插座之间所安装的线缆
B. 由终端到信息插座之间的连线系统
C. 各楼层设备之间的互联系统
D. 连接各个建筑物的通信系统
[不定项选择题]Passage 1
The brain is truly a marvel. A seemingly endless library, whose shelves house our most precious memories as well as our lifetime's knowledge. But is there a point where it reaches capacity? In other words, can the brain be “full” ? The answer is a resounding no, because, well, brains are more sophisticated than that. A study published in Nature Neuroscience earlier this year shows that instead of just crowding in, old information is sometimes pushed out of the brain for new memories to form. Previous behavioral studies have shown that learning new information can lead to forgetting.But in this study, researchers used new neuroimaging techniques to demonstrate for the first time how this effect occurs in the brain. The paper's authors set out to investigate what happens in the brain when we try to remember information that's very similar to what we already know. This is important because similar information is more likely to interfere with existing knowledge, and it's the stuff that crowds without being useful.
To do this, they examined how brain activity changes when we try to remember a “target”memory, that is, when we try to recall something very specific, at the same time as trying to remember something similar (a “competing” memory). Participants were taught to associate a single word (say, the word sand) with two different images--such as one of Marilyn Monroe and the other of a hat. They found that as the target memory was recalled more often, brain activity for it increased.Meanwhile, brain activity for the competing memory simultaneously weakened. This change was most prominent in regions near the front of the brain, such as the prefrontal cortex, rather than key memory structures in the middle of the brain, such as the hippocampus, which is traditionally associated with memory loss. The prefrontal cortex is involved in a range of complex cognitive processes, such as planning,decision making, and selective retrieval of memory. Extensive research shows this part of the brain works in combination with the hippocampus to retrieve specific memories. If the hippocampus is the search engine, the prefrontal cortex is the filter determining which memory is the most relevant. This suggests that storing information alone is not enough for a good memory. The brain also needs to be able to access the relevant information without being distracted by similar competing pieces of information.
In daily life, forgetting actually has clear advantages. Imagine, for instance, that you lost your bank card. The new card you receive will come with a new personal identification number (PIN). Research in this field suggests that each time you remember the new PIN, you gradually forget the old one: This process improves access to relevant information, without old memories interfering. When we acquire new information, the brain automatically tries to incorporate it within existing information by forming associations. And when we retrieve information, both the desired and associated but irrelevant information is recalled. The majority of previous research has focused on how we learn and remember new information. But current studies are beginning to place greater emphasis on the conditions under which we forget, as its importance begins to be more appreciated.
According to the passage, which part of our brain is traditionally considered to be fundamental tothe formation of new memories?
A. The frontal cortex.
B． The middle of the brain.
A.
B.The prefrontal cortex.
C.
D.The back part of the brain
[单选题] 关于损伤的炎症期为
A.1-2 天
B.6-7 天
C.3-5 天
D.10 天左右
E.14 天左右
[填空题]1943年，中、美、英在《开罗宣言》中宣布：“日本在中国攫取的一切土地，包括满洲、台湾、澎湖列岛无条件收复．"这反映了国民政府______．
A. A．捍卫国家领土完整
B．取得了抗日战争胜利
C．同美英妥协卖国
D．改变了中国社会性质
[判断题]动车组列车员可以戴胶皮手套或手持垃圾袋进入客室内作业。
A.正确
B.错误
[单选题]风险是特定危险事件发生的( )与后果的结合。
A.必然性
B.可能性
C.危险性
[单项选择]具有燥湿健脾，祛风湿，发汗，明目功效的药物是：（）
A. 苍术
B. 厚朴
C. 藿香
D. 佩兰
E. 砂仁
[判断题]A-A-B-A-023 3 1 3
逻辑表达式中任何逻辑变量的取值只有两种:1和0,对应逻辑变量的真和假。
A.正确
B.错误
[单选题]假冒注册商标，除在客观方面表现为未经注册商标所有人许可外，还应具备什么条件，情节严重的，构成犯罪？（ ）
A.在同一种商品上使用与其注册商标相似的商标
B.在同一种商品上使用与其注册商标相同的商标
C.在类似的商品上使用与其注册商标相似的商标
D.在类似的商品上使用与其注册商标相同的商标
[单项选择]最小二乘法确定直线回归方程的原则是各实测点（）
A. 距直线的垂直距离相等
B. 距直线的纵向距离之和最小
C. 距直线的纵向距离的平方和最小
D. 距直线的垂直距离之最小
E. 距直线的垂直距离的平方和最小
[单项选择]下列有关行政许可听证程序的选项中，哪个是不正确的
A. 无论依职权还是依申请的听证，行政机关都需要事前公告
B. 听证即是有关各方提出意见和证据，并进行质证和辩论
C. 未依据听证笔录作出的行政许可决定是无效的
D. 听证应当制作笔录
[单选题]两个并联在10V电路中的电容器是10μF,现在将电路中电压升高至20V,此时每个电容器的电容将(____)。
A.增大
B..减少
C..不变
D..先增大后减小
[单选题]根据物资采购管理程序,物资采购首先应( )。
A.进行采购策划,编制采购计划
B.明确采购产品或服务的基本要求
C.进行市场调查,选择合格的产品供应单位
D.采用招标或协商等方式确定供应单位
[单选题]60年代初期,在周恩来的督促下,中央宣传部等有关部门提出了( )。这个文件对于文艺界的调整和繁荣文艺创作起了重要作用。
A.《关于当前文学艺术工作若干问题的意见(草案)》
B.《我国社会主义文学艺术的道路》
C.《关于全国文联和各协会整风情况的报告》
[多选题]未经银行柜面、自助机具加以银行工作人员现场面对面确认身份的，Ⅲ类银行户可以办理以下（ ）基础业务。
A.存款、购买银行投资理财产品等金融产品
B.绑定账户转入资金和向绑定账户转出资金
C.限额消费和缴费
D.限额向非绑定账户转出资金
[多项选择]患者男性，76岁。近1年多来大便不规律，经常排不成形稀便，每日2-3次，有时则大便干结。近3天感中下腹持续性疼痛伴阵发性加重，肛门无排气排便。查体：腹部膨隆，来见肠形及蠕动波，无肌紧张，腹部压痛（+），以中下腹为著，反跳痛可疑，移动性浊音（-）。提示：直肠指检发现距肛门8cm处能触及肿块下缘，并占据肠腔3/4圈。下一步应做的检查为（）
A. 腹腔动脉造影
B. 胸部摄片
C. 肛门镜检查并取活检
D. 盆腔CT
E. 纤维结肠镜检查
F. 肝胆B超
G. CA125检查
H. 钡剂灌肠
[判断题]H错D1电力机车蓄电池安装在机械间走廊的两侧。( )
A.正确
B.错误
[判断题]动车组禁止加挂各型机车车辆。
A.正确
B.错误
[单选题]频率为2.5MHZ的纵波在探测铝时的波长( )。
A.2.34mm
B.1.3mm
C.2.6mm
D.1.26mm
[单选题]钢轨或焊缝处折断，切除断口折损部位的长度不超过（ ）mm时，亦可进行原位焊复。
A.30
B.50
C.60
D.100
E.略
[单项选择]《中华人民共和国专利法》规定：“申请专利应当向专利局提交申请文件一式两份。”该规范性质如何( )
A. 委任性规范
B. 准用性规则
C. 确定性规范
D. 授权性规范
[多项选择]现在的很多企业不仅仅在进行财富的积累，也在践行着社会价值的提升。比如（）
A. 马云创造的阿里巴巴“让天下没有难做的生意”
B. 陈天桥创办盛大网络
C. 张天一创办伏牛堂
D. 德国的一家眼镜公司让色盲患者重新认识了世界
