热门试题:
[单选题]在全部或部分带电的运行屏（柜）上进行工作时，应将检修设备与停用设备以明显的标志隔开。
A.A.正确
B.B.错误
[单选题]抗组胺药对以下哪种情况无效
A.过敏性鼻炎
B.荨麻疹
C.支气管哮喘
D.药疹
E.晕车
[单选题]在柴油机燃料供给系中,喷油压力的大小取决于( )。
A.发动机的转速
B.节气门的大小
C.喷油泵的柱塞行程
D.喷油器弹簧的预紧力
[单项选择]女性，36岁，无明确原因出现颈项、背部酸痛，伴颈部活动轻度受限，口服消炎镇痛剂和肌肉松弛剂，接受理疗，疼痛无缓解；体格检查，除颈椎活动轻度受限和压痛点压痛阳性外，未见其他阳性体征；化验检查无异常；颈椎正侧位片除生理曲度略变浅外，未见其他异常；初步诊断为颈肌筋膜综合征。如果该患者接受神经阻滞治疗，其不可能出现的并发症是（）
A. 局麻药中毒
B. 神经性休克
C. 出血、血肿和感染
D. 肝肾功能损害
E. 穿刺致周围组织损伤和永久性神经损伤
[单选题]高瓦斯矿井的掘进巷道长度大于()m时，掘进巷道中部必须安设甲烷传感器。
A.500
B.800
C.1000
[单项选择]
Text 2
The rate of population growth is fastest in underdeveloped countries. In these countries a high birth rate is accompanied by a lowered death rate thanks to improved standards of public health. Ideally it should be possible to counter balance the effect of a reduced death rate by an increased use of family planning. In practice, however, population control is a complex matter. Throughout history people have determined the size of their families ac-cording to the cultural values of their societies.
Population control has long been a subject of discussion among researchers. Some have argued that the supply of good land is limited. In order to feed a large population, bad land must be cultivated and the good land overworked. As a result, each person produces less in a given amount of time and this means a lower average income than could be obtained with a smaller population. Other researchers have argued that a large population gives more scope for the developm
A. a rise in work efficiency
B. a shortage of farm workers
C. a decline in grain production
D. a reduction in average income
[单项选择]系统性红斑狼疮的狼疮带是指带状免疫荧光出现于（）
A. 关节滑膜内
B. 血管壁
C. 肾小球基膜
D. 真皮与表皮交界处
[不定项选择题]时间知觉可以借助的线索包括()。
A.钟表提供的信息
B.四季的变化
C.生理活动的周期性变化
D.情绪的变化
[单选题]移动电缆接头一般应停电进行。如必须带电移动，应先调查该电缆的历史记录，由有经验的施工人员，在（ ）下，平正移动。
A. A.专人统一指挥
B.B.专人监护
C.C.监护
D.D.作业人员的指挥
[单选题]( )是指导党和人民实现中华民族伟大复兴的正确理论。(来源:学习强 国)
A.中国特色社会主义道路
B.中国特色社会主义理论体系
C.中国特色社会主义制度
D.中国特色社会主义文化
[单选题]ETC出口费显显示“标签已过期请走人工车道”,应如何处理。
A.手持机读取标签信息放行
B.记录后直接放行
C.混合车道ETC特情操作放行
D.混合车道MTC特情操作放行
[判断题]室内排水管道均应设置伸顶通气管?
A.正确
B.错误
[单项选择]You'd better ______ any noise. Mum is sleeping.
[判断题]申请人的资格审核由申请专业类别相应的市级行政主管部门负责
A.正确
B.错误
[判断题]对公民采取拘留措施，依法应当给予国家赔偿的，执行拘留的机关为赔偿义务机关。
A.正确
B.错误
[单项选择]为数据库表创建索引的目的是（）
A. 提高查询的检索性能
B. 创建唯一索引
C. 与SQLServer数据检索的速度无关
D. 加快数据库打开的速度
[判断题]用联轴器时无需拆卸就能使两轴分离。
A.正确
B.错误
[单选题]过氧化物酶染色强阳性的白血病是 ( )
A. 多毛细胞白血病
B. 急性粒细胞白血病
C. 急性红白血病
D. 急性单核细胞白血病
[单项选择]A Doctor in the House
Brushing your teeth twice a day should keep the dentist away. But if a group of scientific researchers have their wish, it will make the rest of your body healthy too. (46) It is one of many gadgets proposed by engineers and doctors at the Center for Future Health in New York— others include a pair of glasses that help to jog your memory, and a home camera designed to check for cancer.
The devices seem fanciful, but the basic principles are simple. The gadgets should make it easy for people to detect illness long before it strikes and so seek treatment far earlier than normal. (47) ________ In the long run, the technology may even prevent illness by encouraging us to lead healthier lives.
Intelligent bandages are a good example. Powerful sensors within the bandage could quickly Identify tiny amounts of bacteria in a wound and determine which antibiotics would work best. (48) ________
Socks are long overdue for a makeover. In the future they will be able to aut
[判断题]建设单位应当向作业人员提供安全防护用具和安全防护服装。
A.正确
B.错误
[判断题]骨由有机质和无机质组成，其中老年人的骨有机质所占比例较大，弹性较大，易发生变形。( )
A.正确
B.错误
[判断题]传输中调制解调的目的是能够提高传输速率。
[单选题]脑组织的主要能源供给是
A.氨基酸
B.脂肪
C.蛋白质
D.葡萄糖
[单项选择]合欢皮的功效是（）
A. 清心安神
B. 潜阳安神
C. 补气安神
D. 解郁安神
E. 养血安神
[单项选择]含氮有机物在土壤微生物作用下，首先（）。
A. 氨化，再进一步硝化
B. 腐殖质化，再硝化
C. 腐殖质化，再无机化
D. 无机化，再腐殖质化
E. 以上都不是
[单项选择]由主管人员实施有效监督和指挥的直接下属人数称为（）。
A. 有效跨度
B. 管理限度
C. 管理限额
D. 组织编制
[简答题]作为线性电路分析中的一个重要定理，简述叠加定理的基本内容和适用范围？
[单选题]原子吸收中与定量相关的吸光物质是( )。
A. 分子
B.离子
C.基态原子
D.激发态原子
[单项选择]我国公安机关的宗旨是( )。
A. 维护国家安全
B. 维护社会治安
C. 保卫人民民主专政的政权
D. 全心全意为人民服务
[多选题]当发现中暑时,立即将病员从高温或日晒环境转移到阴凉通风处休息。下列处理正确的是（）
A.A.用冷水擦浴，湿毛巾覆盖身体
B.B.千万不可电扇吹风，或在头部置冰袋等方法降温
C.C.并及时给病员口服盐水
D.D.严重者送医院治疗
[填空题]3. With Genetic Gift, 2 Monkeys Are Viewing a More Colorful World
Dalton and Sam are male squirrel monkeys, about a foot tall. (46) Dalton and Sam lead a more protected life in the laboratory of Jay and Maureen Neitz at the University of Washington, Seattle. Recently, the Neitzes endowed them with a new genetic gift : the ability to see the world with full color vision.
Male squirrel monkeys have only two of the color pigments (色素) known as opsins (视蛋白), unlike people who have three. The Neitzes, with Katherine Mancuso and other colleagues, used the technique of gene therapy to introduce the gene for the missing red pigment into the cone cells of the monkeys’ retinas (视网膜). (47)
It was somewhat surprising that the monkeys’ brains could take advantage of a third opsin. The retina, however, seems to work by recording the difference between the signals from neighboring cones, the cells that detect color. (48)
New World male monk
[单选题]手摇道岔须严格按照“（）”进行作业，实行“双人”确认制度。
A.四步曲
B.五步曲
C.六步曲
D.七步曲
[多选题]铁路特有工种(岗位)和与行车安全有关的通用工种(岗位)职工在工作时间内(),甲方应予解除劳动合同。
A.饮酒
B.私自雇人
C.请托无相应工种(岗位)职业资格人员顶岗替班的
D.未经允许私自倒班的
[单选题]某病人对声光刺激无反应，但压迫其眶上神经有痛苦表情，意识障碍程度为
A. 意识模糊
B. 昏睡
C. 浅昏迷
D. 深昏迷
E. 谵妄
[单选题]牙列缺失后，牙槽骨吸收速度的规律是
A.健康者吸收慢
B.龋病较牙周病吸收快
C.外伤较牙周病吸收快
D.骨密质较骨松质吸收快
E.缺牙时间越长，吸收越不明显
[判断题]摩擦式提升机可以使用罐座,因为会使钢丝绳松弛,容易造成提升钢丝绳滑动。
A.正确
B.错误
