热门试题:
[单项选择]关于内源性呼气末正压（PEEPi）的描述，下列错误的是（）
A. 对于无自主呼吸的患者，通常采用呼气末阻断法
B. 静态PEEPi反映所有肺泡的平均PEEPi
C. 食管气囊测定技术测得的动态PEEPi是最小的PEEPi
D. 从吸气开始至呼气流速产生之前的食管压下降即为动态PEEPi
E. 为准确起见，一般监测2～3次PEEPi后取平均值
[单选题]在防火重点部位或易燃、易爆区周围动用明火或进行可能产生火花的作业时，应办理（ ）。
A.第一种工作票
B.第二种工作票
C.抢修单
D.动火工作票
[多选题]满溜槽的作用
A.稳定液位
B.排除焦油
C.封住煤气
[判断题]可通过建立凭证、印章管理信息系统,实现对重要凭证和核算印章的系统刚性控制,建立“交易、凭证、用印”对应关系。
A.正确
B.错误
[多项选择]混凝土投料顺序是( )法。
A. 一次投料
B. 二次投料
C. 三次上料
D. 一次加水
E. 二次加水
[单项选择]早期与正确诊断传染病的主要意义是（）
A. 有助于正确的病原治疗
B. 避免延误病情
C. 帮助判断预后
D. 可以进行流行病学调查
E. 有助于预防和控制流行
[填空题]站、车发生纠纷，在责任、原因不明时，站、车双方均不得以（）开车，造成列车（）。
[单选题]集成传感器检查时，端盖防松标记用（ ）
A.红色立体漆
B.红色标记笔
C.白色标记笔
[填空题]在BCCS上查询GPS工作状态的命令是：（）
[单选题]5.43.
中压电力线载波工作频率范围推荐采用( )kHz。
A.1-100
B.1-500
C.3-100
D.3-500
[判断题]物业管理的日常运作阶段的工作是指用户入住后，物业管理企业在实施物业管理中所做的各项工作。( )
[单选题]变压器的铁心应该选用( )。
A.永久磁铁
B.永磁材料
C.硬磁材料
D.软磁材料
[单选题]除（）可采用硬压板外，保护装置应采用软压板，满足远方操作的要求。
A.跳闸压板
B.检修压板
C.功能压板
D.以上均可
[单选题]中共( )提出党的政治路线是∶ "放手发动群众,壮大人民力量,在我党的领导下,打败日本侵略者,解放全国人民,建立一个新民主主义的中国。"
A.六大
B.七大
C.八大
D.九大
[填空题]It is difficult to imagine what life would be like without memory. The meanings of thousands of everyday perceptions, the bases 【B1】 the decisions we make, and the roots of our habits and skills are to be 【B2】 in our past experiences, which are brought into the present 【B3】 memory.
Memory can be defined as the capacity to keep 【B4】 available for later use. It includes not only "remembering" thing like arithmetic or historical facts, but also any change in the way an animal typically behaves. Memory is 【B5】 when a rat gives up eating grain because he has sniffed something suspicious in the grain pile. Memory is also involved when a six year old child learns to swing a baseball bat.
Memory 【B6】 not only in humans and animals but also in some physical objects and machines. Computers, for example, contain devices for storing data for later use. It is interesting to compare the memory storage capacity of a computer 【B7】 that of a human being. The instant access memory of a large c
A. A．progressive
B．instructive
C．instant
D．protective
[单项选择]We live in southern California growing grapes, a first generation of vintners, our home adjacent to the vineyards and the winery. It’s a very pretty place, and in order to earn the money to realize our dream of making wine, we worked for many years in a business that demanded several household moves, an incredible amount of risk- taking and long absences from my husband. When it was time, we traded in our old life, cinched up our belts and began the creation of the winery.
We make small amounts of premium wine, and our lives are dictated by the rhythm of nature and the demands of the living vines. The vines start sprouting tiny green tendrils in March and April, and the baby grapes begin to form in miniature, so perfect that they can be dipped in gold to form jewelry. The grapes swell and ripen in early fall, and when their sugar content is at the right level, they are harvested carefully by hand and crushed in small lots. The wine is fermented and tended until it is ready to be b
A. never got an answer.
B. never got a simple answer.
C. could make no sense of the answer.
D. could not believe what she got.
[判断题]通货膨胀情况下,必须采取扩张性财政政策,刺激总需求增长;通货紧缩情况下,必须采取紧缩性财政政策,抑制总需求。
A.正确
B.错误
[单选题]高处作业区周围的孔洞、沟道等不用设()。
A.盖板
B.绝缘挡板
C.安全网
[单项选择]某男性、67岁，患阻塞性肺气肿12年余，近日着凉后，咳嗽、咳黄痰、气喘加剧，伴发热，上腹胀痛，纳差，肝大伴压痛，下肢轻度水肿，心电图偶见房性过早搏动异丙托溴胺的最常见副作用为（）。
A. 心悸
B. 手抖
C. 失眠
D. 腹泻
E. 排尿困难
[判断题] 各类交通道口的跨越架的拉线和路面上部封顶部分, 应悬挂醒目的警告标志牌。 ( )(1.0分)
A.正确
B.错误
[多选题]不得混装于同一集装箱内的货物包括 （ ）。
A.易腐货物与非易腐货物
B.危险货物与非危险货物
C.性质互抵的货物
D.运输条件不同的货物
[判断题]敷设电缆作业时，因工作人员人数不足，作业负责人临时调集部分人员，未进行安全交底，人员即进入有限空间内作业。
A.正确
B.错误
[填空题]1949年1月,李宗仁就任“代总统”后,提出愿意以中共的八项条件为基础进行和平谈判,其目的是希望实现(),巩固自己的地位,取代蒋介石。(出题单位:天津社会科学院)
[填空题]特种设备安全管理人员、检测人员和作业人员应当按照()有关规定取得相应资格，
[判断题]断路器非全相跳 (合) 闸:是指断路器三相应该同时动作而其中一相或两相未按指令动作的情况。
A.正确
B.错误
[多选题]异物来源一般有哪些方式？( )
A.设备制造遗留内部
B.设备安装期间遗留系统内部
C.设备检修期间遗留系统内部
D.设备内部自身部件松脱形成异物
[判断题]深度指示器失效保护是深度指示器失灵时也能开车。
A.正确
B.错误
[单项选择]下列配伍变化，属于物理配伍变化的是（）
A. 水杨酸遇铁盐颜色变深
B. 硫酸镁溶液与碳酸氢钠溶液混合产生沉淀
C. 芳香水中加入一定量的盐可使挥发油分离出来
D. 维生素B与维生素C混合制成溶液时，维生素B效价显著降低
E. 乌洛托品与酸性药物配伍产生甲醛
[单选题]下列说法中，正确的是( )。
A. .在液压系统中，将溢流阀调至某压力值后则油缸中的油压力始终保持不变
B. .在液压系统工作过程中，当油压力超过溢流阀的调整压力时，整个系统的油压力就迅速降至为零
C. .进入油缸的流量越多，则油缸的推力也越大
D. .液压泵是将机械能转变为液压能的装置
[单选题]
维持糖皮质激素分泌相对稳定的机制是
A.CRH的作用
B.血液中糖皮质激素的负反馈作用
C.ACTH的作用
D. CRH的脉冲式释放
E.A. 以上都是
[判断题]在雷雨季中线路侧带电可能经常断开的断路器外侧应装设避雷装置。( )
A.正确
B.错误
[单选题]背阔肌可使（ ）
A.肩胛骨后移、旋外
B.肩关节旋外、后伸
C.肩关节内收、内旋
D.肩关节内收、旋外
E.脊柱向同侧屈
[判断题]禁止两人在一架梯子上作业。（ ）
A.正确
B.错误
[单选题]ZDJ9转辙机的表示杆的销孔旷量应不大于0.5mm?
A.0.2
B.0.5
C.0.7
D.1
[单项选择]
American higher education stands on the brink (边缘) of chaos. (1) have so many spent so long learning so little.
The present crisis (2) the increasingly widespread acceptance among faculty and administrators of the fatal educational (3) that a student should not be required to do any academic work that (4) him. If a student prefers not to study science or history or literature, he is (5) to attain his degree without studying any science, history, or literature.
Throughout the country the attempt is being (6) to provide students with what is advertised as a (7) education without requiring of them the necessary self-discipline and hard work. Students have been led to believe they can achieve (8) effort, that all they need to do in order to obtain a good education is skip (跳跃) casually down the merry road to learning. Unfortunately, that road is no (9) a detour (绕路) to the dead end of ign
A. Whereas
B. As
C. Though
D. Unless
[单项选择]
女性，59岁，被汽车撞伤3小时而送至医院。查体：病人谵妄，皮肤发紫、四肢厥冷；血压60/40mmHg，脉搏细速。
目前需首先处理的是（ ）
A. 摄X线片，了解骨折情况
B. 腹部B超，了解腹部脏器损伤情况
C. 给予抗生素，预防感染
D. 立即输平衡盐溶液和全血
E. 立即插导尿管，了解有无尿道损伤
