热门试题:
[填空题]高频阻波器在工作频率下，要求衰耗值小于（）NP。
[单选题]【单选】党员积分达标考核的类别是()。
A.“四个合格”
B.“四讲四有”
C.“四个意识”
D.“四个自信”
[单项选择]不属于"四查十对"中四查的是（）
A. 查处方
B. 查药品
C. 查临床诊断
D. 查配伍禁忌
E. 查用药合理性
[单选题]各项安全管理制度的核心是( )。
A.教育培训制度;
B.责任追究制度;
C.组织管理制度;
D.安全生产责任制度
[单项选择]
A. to
B. in
C. at
D. for
[单选题]
降低心肌兴奋性的因素有
A.静息电位减小
B.超常期
C.阈电位上移
D.Na+通道处于备用状态
E.低钙血症
[单选题]当计轴故障出现白光带时,操作()
A.区故解
B.强制释放
C.预复位
D.解除复位
[单项选择]关于Km的意义，正确的是（）
A. Km越大，酶与底物亲和力越大
B. Km值与酶所催化的底物无关
C. Km值与酶的结构无关
D. Km值是V=1/2Vmax时的酶浓度
E. Km值是V=1/2Vmax时的底物浓度
[单项选择]转舵时声音异常并存在严重的撞击现象，其原因可能是（）。
A. 舵承与舵杆、舵轴、舵销的配合间隙过大
B. 舵承与舵轴或舵销的间隙过小
C. 舵系安装不正
D. 舵杆变形
[判断题]配电线路和设备停电检修，接地前，应使用接触式验电器或测电笔。（ ）
A.正确
B.错误
[单项选择]
|
女，24岁，在春季旅游中途干胸闷，呼吸困难，全身大汗。查体：唇稍发绀，呼吸急促，双肺满布干啰音，心率90次/分，律齐。过去曾有类似发作，休息后自行缓解。 |
为明确诊断首先要进行
A. 血清淀粉酶测定
B. 急诊钡餐造影
C. 急性静脉胆道造影
D. 摄腹部立位平片
[判断题]接触电压是指人站在带电外壳旁(水平方向0.8m处),人手触及带电外壳时,其手、脚之间承受的电位差。()
A.正确
B.错误
[不定项选择题]共用题干
采用ELISA竞争一步法检测抗HBc抗体，如果固相包被的物质是抗原
该抗原是
A.PreSl
B.HBvAg
C.HBeAg
D.HBsAg
E.HBcAg
[单选题]275.低温库存较久的血液，血浆中哪种离子浓度升高
A.A.Cl-
B.B.Ca2+
C.C.K+
D.D.Na+
E.E.有机负离子
[单选题]1违规使用没有（）的危险化学品，属于Ⅲ类严重违章。
A.化学品安全技术说明书
B.“一书一签”（化学品安全技术说明书、化学品安全标签）
C.化学品安全标签
D.出厂合格证
[多选题]线路检查时曲线正矢测量，检查时应使用（ ）m的弦长在钢轨顶面下（ ）mm处测量，并符合正矢检查“三不、三要、两准确”的要求。
A.A.000000000000010
B.20
C.16
D.12
[多项选择]企业实施多元化经营战略的好处有利于（）
A. 主导产品的系列化和多样化，不断占领和开拓市场
B. 开发多种产品，提高产品的质量和性能
C. 分散经营风险，把风险损失降低到最小程度
D. 资源的综合利用和优化配置，不断提高经营效益
[多项选择]世界卫生组织把“具备良好的意志品质”作为心理健康重要标准之一。良好的意志具有下面哪些特点？（）
A. 目的性，目标要合理
B. 会调整自己的期望和心态
C. 坚强性和自觉性
D. 果断性和自制性
[单选题]接发普通旅客列车时，除向列调报点外，标准用语是( )。
A.普客×次
B.客车×次
C.客车普×次
D.普通客车×次
[单项选择]当脚手架搭设高度H大于（）时，不允许使用单排脚手架。
A. 20m
B. 24m
C. 25m
D. 30m
[单选题]一个估价项目中的价值时点，本质上是由（ ）决定的。
A.估价委托合同签订时间
B.估价目的
C.实地查勘估价对象的时间
D.委托人的意愿
[单项选择]Centuries ago, men discovered that (1) moisture from food helps to (2) it, and that the easiest way to do this is to expose the food (3) sun and wind.
Nowadays most foods are dried (4) . The conventional method of such dehydration is to put food in chambers (5) hot air is blown at temperatures of about 110℃ at entry to about 43℃ at (6) . This is the usual method for drying (7) as vegetables, minced meat, and fish.
Liquids such as milk, coffee, tea, soups, and eggs may be dried by pouring them over a (8) horizontal steel cylinder or (9) them into a chamber through which a current of hot air (10) In the first case, the dried material is scraped off the miler as a thin film which is then (11) small, though still relative coarse flakes. In the second process it falls to the bottom of the chamber as a (12) powder.
Dried foods (13)
A. heated
B. heat
C. hinting
D. being heated
[简答题]如果本案原告某百货商场在胡某拒补价款后不予过问，直至2004年10月才到人民法院起诉，法院应如何处理为什么
[填空题]矿物的反射色系指矿物光片在矿相显微镜（）下所显示的颜色。
[单项选择]
A. food
B. clothes
C. presents
D. money
[填空题]侦查人员根据甲案和乙案的作案时间、手段、目的、侵害对象大体相同，以及作案人的体貌特征很相似，并已查明乙案为林某所为，若运用并案侦查类比推理，就可以提出（）的侦查假设。
[单选题]1.123.
DC-GL14是( )类型终端。
A.载波集中器
B.II型集中器
C.GPRS电能表
D.II型采集器
[单项选择]肌力为1～2级时应选择以上哪一训练方法（）
A. 传递神经冲动的训练
B. 主动一辅助训练
C. 免负荷运动
D. 由主动训练进展到抗阻训练
E. 采用器械抗阻训练方法
[简答题]《普速铁路接触网安全工作规则》第四十八条 接触网作业中对推动车梯有哪些要求？
[单选题]煤矿井下使用的蓄电池动力装置,检修应当在车库内进行,测定电压时必须在揭开电池盖( )min后测试。
A.5
B.10
C.15
D.20
[多选题]低压熔断器具有结构简单，（ ）等优点，因而得到广泛应用。
A.价格便宜
B.使用、维护方便
C.体枳小
D.重量轻
[单项选择]
患者，女性，32岁。既往有风湿病史，出现心房纤颤1月余，超声心动图示二尖瓣狭窄，瓣口面积0.8cm2，可疑存在左心房血栓。目前患者心功能Ⅱ级，无风湿活动及感染征象。
以下检查能明确有无左心房血栓的是（）
A. 经食管超声
B. 胸部CT
C. X线胸片
D. 心电图
E. 磁共振
[填空题]The curse of jet lag has struck most international travelers at one time or another -- and anyone lucky enough to have avoided it will surely have suffered the equally unpleasant sleep-deprivation involved in an early-morning start. Nor, as shift workers know too, is it possible to escape by going to bed earlier the previous evening, and thus putting sleep in the bank. Sleepiness is controlled by the body’s internal biological clock, so an earlier bedtime just means several wakeful hours staring in frustration at a darkened ceiling.
For years, some travelers and shift workers have sworn by melatonin (褪黑素). This is a hormone that regulates the biological clock. It is made in the brain by a structure called the pineal gland (松果体), as darkness sets in after sunset. Light is the one that keeps the biological clock in the same pace with solar time. The clock then tells the brain when to go to sleep. The theory of those who use melatonin is that an external dose of it can reset the cl
[单项选择]It was a cold winter, and Mrs. Smith wanted to do some (41) . So she waited until it was Saturday, when her husband was free. She took him (42) the shops with her and let him (43) for everything and carry her bags. They went to (44) shops, and Mrs. Smith bought a lot of things. She often said, "Look, my dear! Isn’t that beautiful!" He then answered, "All right, dear. How much is it " and took his money (45) to pay for it.
It was dark when they came out of the last (46) . Mr. Smith was tired and thinking about (47) things. He wanted a nice meal and drank by the side of a warm fire (48) home! Suddenly his wife looked up at the sky and said, "Look at (49) beautiful moon, my dear!"
Without stopping, Mr. Smith answered, "All right, dear. How (50) is it /
A. shopping
B. shops
C. shop
[判断题]一台吊篮应承载二人及以下人员同时进行作业,作业时吊篮下方严禁站人、严禁交叉作业。( ) 解析 :正确答案必须二人同时作业
A.正确
B.错误
[单选题]边境生产作业必须履行审批手续，实行审批制度，由边境生产作业的主办单位拟定作业方案向（）提出申请。
A.主管部门
B.公安部门
C.外事部门
D.边防部门
[单选题]常用手工细齿锯条的齿距是（ ）mm。
A.A、0.6
B.B、0.8
C.C、1
D.D、1.2
[单选题] 具备生成油、气条件，且能生成一定数量的石油、天然气的地层称为( )。
A.盖层
B.储集层
C.遮挡物
D.生油气层
