热门试题:
[单选题] 治疔肺炎球菌肺炎常首选( )
A.青霉素
B.头孢菌素
C.氨苄青霉素
D.红霉素
E.氧氟沙星
[单选题]在作业繁忙的调车场上，因受地形、地物影响，调车机车司机看不清调车指挥人的手信号时，设（ ）。
A.调车表示器
B.调车信号机
C.驼峰信号机
[单选题]输送( )物质的管道应设阻火器。
A.爆炸性混合气
B.可燃液体
C.易燃液体
[单选题]以下轮椅类型中,能满足不同功能障碍老年人需求的是( )(1.0)
A. 固定式轮椅
B. 折叠式轮椅
C. 手推式轮椅
D. 医用轮椅
E. 电动轮椅
[单选题]（）负责铁路普法宣传、教育，推动全系统全员尊法学法守法用法。
A.科技和信息化部（总工程师室）
B.企业管理和法律事务部
C.安全监察室（铁路安全监督管理办公室）
D.办公室（党委办公室、董事会办公室）
[单选题]利用职务上的便利，占用公物归个人使用时间超过( )个月，情节较重的，给予警告或者严重警告处分；情节严重的，给予撤销党内职务处分。
A.三
B.六
C.十二
D.二十四
[单项选择]从（）的角度看，健康心理是一种心理状态，它在某一时段内展现着自身的正常功能。
A. 动态
B. 静态
C. 宏观
D. 微观
[单项选择]
What makes a child speak a language has long been a puzzle to linguists. (61) speaking, there are two schools of linguists, both of whom try to explain (62) a child picks up a language so easily. The fact that a child picks a language (63) is (64) ; at one year old, a child is able to say "bye-bye"; at two, he is able to use fifty words; by three he begins to (65) tenses. The famous American linguist Noam Chomsky (66) that human beings have a sort of built-in system for language use, and that the (67) is (68) . Children are not taught language (69) they are taught arithmetic. Other linguists, (70) , hold the view that a child learns (71) of his language from the hints in the environment. (72) , theorists of both schools (73) that there is a biological basis fro language use. The (74) is which is more important, the inner ability or the environment. This is certainly a fiel
A. help
B. teacher
C. environment
D. hint
[单选题]选择性地扩张脑血管，对抗脑血管痉挛，临床用于预防和治疗蛛网膜下隙出血后脑血管痉挛所致的缺血性神经障碍的药物是
A.地尔硫卓
B.尼莫地平
C.维拉帕米
D.硝苯地平
E.普尼拉明
[单项选择]测定密度组成的浮沉试验是以（）为原理的。
A. 牛顿原理
B. 沃塞尔原理
C. 阿基米德原理
D. 爱因斯坦原理
[单选题]现场勘察工作由（）组织。
A.工作票签发人或工作负责人
B.工作票签发人或工作许可人
C.工作许可人或工作负责人
D.工作票签发人或专责监护人
E.略
F.略
[单选题]屏蔽门纵向组合总长度应为多少（）。
A.110m
B.114.8m
C.114m
D.120m，
[单项选择]感染病原体后机体仅发生特异性免疫应答而无明显症状，此种表现属于（）
A. 病原携带状态
B. 潜伏性感染
C. 显性感染
D. 病原体被清除
E. 隐性感染
[单选题]二级母钟上的POWER（电源）指示灯正常情况下的颜色是
A.红色
B.绿色
C.黄色
D.橙色
[判断题]原理图符号与PCB元器件封装存在一一对应关系。
A.正确
B.错误
[判断题] 锅炉水压试验升压速度一般不大于0.2～0.3MPa/min。
A.正确
B.错误
[判断题]线路送电的操作顺序是:母线侧隔离开关、线路侧隔离开关、断路器。 ( )
A.正确
B.错误
[单项选择]
某油田2009年8月份销售情况如下：
(1)
开采原油8万吨，其中销售6万吨，用于自办油厂加工1万吨，加热修井耗用1万吨；
(2)
采用分期收款方式销售一批原油6万吨，合同规定，货款分两个月收取，本月收取60%，其余货款于9月30日前收取；采用预收款方式销售原油8万吨，双方约定9月15日发货，本月已收取全部货款；
(3) 当月销售与原油同时开采的天然气5000千立方米，销售3000千立方米，自用1000千立方米。
已知：原油单位税额为15元/吨，天然气单位税额8元/千立方米。 |
业务(2)应纳资源税为( )万元。
A. 54
B. 150
C. 174
D. 90
[判断题]消防救援人员可以参与以营利为目的的文艺演出、商业广告、企业形象代言和教学活动。( )
A.正确
B.错误
[单选题]依据《中国华电集团有限公司电力安全工作规定》的规定，发生或者可能发生急性职业病危害事故的企业应立即采取（ ），逐级向上级和所在地政府部门报告。
A.应急救援和控制措施
B.响应和启动应急预案
C.停止作业并组织人员撤离
D.组织开展院前急救
[单项选择]（）的主要功能为维持眼球的形状和保护眼球内容等。
A. 巩膜
B. 结膜
C. 虹膜
D. 角膜
[单项选择]蒋防的代表作是（）
A. 三国志
B. 《水浒传》
C. 《霍小玉传》
D. 《李娃传》
[单项选择]LAPB是指( )
A. 同步数据链路控制规程
B. 高级数据链路控制规程
C. 平衡链路存取规程
D. 高级数据链路规程
[多选题]状态检修的核心是确定设备（ ）情况，是设备预防维修的基础，是现代设备管理运行阶段的管理核心。
A. 检修费用
B. 检修项目
C. 检修周期
D. 检修经济性
E. 检修安全性
[多选题]某市质量技术监督部门查处徐某制售的假冒白酒40箱以及大量制假原料和工具。执法人员向涉案人员分别制作了三份询问笔录以及制假现场的勘验、检查笔录等,并委托技术部门出具了假酒检验报告。由于该案货值金额较大,移交公安机关进一步处理。上述可以作为刑事诉讼证据的是( )。
A.假酒、制假原料和工具
B.询问笔录
C.勘验、检查笔录
D.检验报告
[填空题] Nightmare disorder, which is also called dream disorder, is (36)________by the occurrence of repeated dreams during which the sleeper feels (37)_______and frightened.
Nightmares are dreams that cause intense fear. During the dream, the sleeper usually (38)________or experiences a threat to their life or safety. Nightmares are also reported that do not involve (39)________danger. As the dream progresses, the threat to the person usually increases, as does their sense of fear. Waking usually occurs just as that threat or danger reaches its (40)________.
The person wakes from the nightmare with a (41)________sense of fear. Waking is complete, and usually (42)_______by increased heart rate, sweating, and other symptoms of (43)________or fear. Once fully awake, (44)__________________________. Because clarity is achieved immediately upon waking, returning to sleep after a nightmare is often difficult.
(45)_________________________. In addition, people may have problems fal
[多选题]现场作业人员工作中正常活动范围与( )等高压线路、设备带电部分的安全距离分别为0.35m、0.6m。
A.10kv
B.20kv
C.66kv
D.220kv
[填空题]《铁路旅客运输服务质量规范》规定，列车到达立即折返时热水瓶、果皮盘应()洁净。
[判断题]爆炸力与混合气体的密闭程度有关,密闭越严,爆炸力越大。( )
A.正确
B.错误
[判断题]带电作业人员应身体健康，无妨碍作亚的生理和心理障碍：应具有电工原理和电力线路的基本知识，
A.正确
B.错误
[判断题]新参加电气工作的人员、实习人员和临时参加劳动的人员（管理人员、非全日制用工等），应经过安全生产知识教育后，方可下现场参加工作，并且不得单独工作。（ ）
A.正确
B.错误
[填空题]
Some Guidelines to Smart Investing
The first guideline: (16)to have______
The first step may be called: (17)______
The second guideline is: (18)to understand the______of______
A diversified portfolio includes: (19)______, mutual funds, bonds, and______
Before you buy them, you should: (20)______
The last guideline is: (21)to have______
Over the past several years, New
York stocks have averaged, (22)______annual returns
[单项选择]
Life in the Universe
Many scientists today are convinced that life exists elsewhere in the universe-life probably much like that on our own planet. They reason in the following way.
As far as astronomers can determine, the entire universe is built of the same matter. They have no reason to doubt that matter obeys the same laws in every part of the universe. Therefore, it is reasonable to guess that other stars, with their own planets, were born in the same way as our own solar system. What we know of life on earth suggests that life will arise wherever the proper conditions exist.
Life requires the right amount and kind of atmosphere. This eliminates all those planets in the universe that are not about the same size and weight as the earth. A smaller planet would lose its atmosphere; a larger one would hold too much of it.
Life also requires a steady supply of heat and light. This eliminates double stars, or stars that flar
A. Most of the planets of the stars.
B. Stars similar to our sun.
C. Planets similar to the earth.
D. Planets with proper conditions.
