热门试题:
[单项选择]电工学中的交流电通常是按照（）规律变化的。
A. 余弦
B. 正弦
C. 余割
D. 正割
[单选题]攂电气集中第12网路线接SJ第5组接点的作用是( )。
A.防止道岔提前解锁
B.防止迂回电流
C.)保证供电
D.防止错误办理故障解锁
[单项选择]成年人股骨干闭合性横断骨折患者，治疗时首选（）
A. 切开复位内固定
B. 卧床制动休息
C. 手法复位，髋人字石膏固定
D. 皮牵引加小夹板固定
E. 手法复位，夹板固定
[判断题]涉及“两站一区间”或“多站多区间”的施工维修作业，施工维修作业同时在两个及以上车站站内进行时，应分别在车站登销记；施工维修作业影响到相邻车站设备使用时，只在施工维修作业车站登销记。
A.正确
B.错误
[单选题]>车站的调车工作应按车站的技术作业过程和( )进行。
A.调车作业计划
B.作业时间
C.作业项目
D.货运要求
[单项选择]13岁的林某与他人订立了一个与其年龄和智力均不相符合的买卖合同。后来，小林的父亲追认其订立的合同有效，小林的父亲行使的权利属于( )
A. 形成权
B. 请求权
C. 支配权
D. 抗辩权
[多选题]国务院是（ ）。
A. 中央人民政府
B. 最高国家权力机关的执行机关
C. 最高国家行政机关
D. 全国人大的工作机构
[判断题]因作业需要，临时拆除或变动安全防护设施时，必须经施工负责人同意，并采取相应措施，作业后立即恢复。
A.正确
B.错误
[单选题]风电机组齿轮箱在随机的脉动风载荷下运行，要求寿命至少（）年。(1.0分)
A.15
B.20
C.10
D.30
[单选题]4岁女孩，发育较差，自婴儿时期哭闹后即出现青紫。体检.心前区隆起，胸骨左缘闻及Ⅱ级收缩期杂音，以第3肋间最响，触及收缩期震颤，肺动脉瓣区第二心音低于主动脉瓣区第二心音。最可能的诊断是
A.房间隔缺损
B.室间隔缺损
C.法洛四联症
D.动脉导管未闭
E.艾森门格综合征
[单选题]下列属于资本项目的是()。
A.运输、建筑
B.货币借贷
C.专利、投资
D.信息服务、文化
[判断题]避雷针一般安装在支柱(电杆)上或其他构架、建筑物上,必须经引下线与接地体可靠连接。( )
A.正确
B.错误
[判断题]变、配电站的钥匙与电力电缆附属设施的钥匙应专人严格保管，使用时要登记。（）
A.正确
B.错误
[判断题]严禁使用3台以上（含3台）局部通风机同时向1个掘进工作面供风
A.正确
B.错误
[简答题] Bloggers learn price of telling too much
Blogs are everywhere — increasingly, the place where young people go to bare their souls, to vent, to gossip. And often they do so with fervor and little self-editing, posting their innermost thoughts for any number of web surfers to see.
There is a freedom in it, as 23-year-old Allison Martin says: "Since the people who read my blog are friends or acquaintances of mine, my philosophy is to be totally honest — whether it’’s about how uncomfortable my hat are or my opinions about First Amendment law," says Martin, who lives in suburban Chicago and has been blogging for four years.
Some are, however, finding that putting one’’s life online can have a price. A few bloggers, for instance, have been fired for writing about work on personal online journals. And Maya Marcel-Keyes, daughter of conservative politician Alan Keyes, discovered the trickiness of providing personal details online when her discussions on her
[单选题]顶空取气法的原理是基于：（）
A.电解定律
B.波尔定律
C.分配定律
D. 摩尔定律
[单项选择]
One of the well-known of American writers is Samuel Clemens, whose pen name is Mark Twain. Bom in 1835, Twain grew up in the Mississippi River town of Hannibal, Missouri. As did many other boys of his day, Twain dreamed of traveling on river boats and of someday becoming a riverboat pilot. Twain used his memories of the life of a river town in his two most famous books, Huckleberry Finn and Torn Sawyer.
As a young man, Twain held many jobs. He was a printer, a good miner, and, for a time, he was a riverboat pilot. During his pilot days, he adopted the name Mark Twain. This was a term used by the boatmen to mean that the water measured two fathoms, or twelve feet, which was deep enough for safe passage.
Finally Twain became a successful writer. He traveled a great deal, writing and speaking, and became very popular both in the United States and in Europe.
Twain’s style of writing was simple and direct. Among the things he wrote about were superstitiou
A. It came from a safe passage.
B. It came from a term used by the boatmen.
C. It came from his boyhood.
D. It came from his measuring tool.
[单项选择]下列各项经济活动中，不属于企业资金退出的是（）。
A. 偿还借款
B. 上缴税金
C. 发放工资
D. 向投资者分配利润
[单项选择]There are two common explanations for the origin of tipping. The Oxford English Dictionary says tip was seventeenth-century underworld slang for "give" -- as in "Tip me your wallet or your life." Opponents of tipping will probably prefer this explanation, since it suggests the practice was originally a form of theft. A less reputable, but nonetheless charming, explanation is that in Renaissance (文艺复兴时期) coffee-houses, boxes were set near the door, into which customers could drop gratuities (赏钱). These boxes, according to the story, bore the legend "To Insure Promptitude (迅速)," which was ultimately shortened to TIP. Whether it was an enterprising serving woman or a boss with his eye on depressing wages who first thought up the idea, the story does not say.
Tipping became common in England by the middle of the eighteenth century. Because it is not suited to a country without an established servant class, it did not catch on in America until after the Civil War, when former slaveh
A. the shaping of the tipping system
B. the practice of tipping in US
C. the popularity of tipping
D. the Origin of tipping
[多项选择]患者女，52岁。患高血压8年，发作性胸骨后压榨性疼痛2年，每次发作持续3～5min，含服硝酸甘油片可缓解。近6个月经常出现心悸、黑蒙、头晕，神经系统检查已除外脑血管病。下列符合SSS的心电图特点为（）
A. 阵发性室上性心动过速
B. 窦性心动过缓
C. 窦房阻滞
D. 窦性停搏
E. 心房颤动
[单选题]带煤气危险作业,距泄漏点下风侧扇形( )米以内工作场所,严禁烟火,禁止无关人员进入危险区域。
A.10
B.20
C.30
D.40
[单选题]甲基麻黄碱的碱性弱于麻黄碱其原理是
A.吸电子诱导效应
B.吸电子共轭效应
C.供电子诱导效应
D.氢键效应
E.空间效应
[判断题] ( )基础代谢是指维持生命的最低能量消耗，即人体在安静而恒温条件下（18-25℃），禁食12小时后，清晨静卧、放松而又清醒的状态下，不受精神紧张、肌肉活动、食物和环境温度等因素影响时的能量代谢。
A.正确
B.错误
[多项选择]在业务方面，2014年2月24日，中国移动联合三星、（）等终端合作伙伴在MWC上首次揭开了新一代“融合通信”（Rich Communication Suite即RCS）服务的面纱。
A. 青橙
B. 索尼
C. 华为
D. 酷派
[判断题]氯化钠电解液在使用中,氯化钠成分不会损耗,不必经常添加补充( )
A.正确
B.错误
[单选题]车组在峰上脱离车列开始溜行的地点，称（ ）。
A.峰顶
B.计算点
C.脱钩点
D.变坡点
[单选题]‡年12月27日,袁家军在全省数字化改革推进会上强调,建成上线了一批具有引领性、示范性和典型意义的重大应用,探索形成了省域层面推进数字变革、构建_____的路径,逐渐形成了数字变革的浙江金名片,有力推进省域治理体系和治理能力现代化,进一步激发发展动力和社会活力,同时也指出了存在的问题。( )
A.数字经济
B.数字治理
C.数字改革
D.数字文明
[填空题]
· Read the text below about leadership.
· In most of the lines 34-45,
there is one extra word. It is either grammatically incorrect or does not fit in
with the meaning of the text. Some lines, however, are correct.
· If a line
is correct, write CORRECT on your Answer Sheet.
· If there is an extra word
in the line, write the extra word in CAPITAL LETTERS on your Answer Sheet.
Being a good leader in business is very much similar to who
being a good
leader in public life—or even in the army. Many of
the qualities required
34. are the same—though, of course, a few qualities
are not quite special
35. to leaders in the business. First of all, however,
a good leader in public
36. life or business mustn’t be frightened to make up
firm decisions. You must
37. be able to arrive at quick decisions and act on
them. It’s no good thinking
38. too long about what to do nor whether is if
much use seeking everything.
39. No a good
[判断题]漏电闭锁是指在开关合闸后对电网进行绝缘监测，起闭锁作用。（）
[填空题]肉用仔鸡的特点是（），（）、（）、（）、（）、（）。
[多选题]第 440 题, 本小题 1 分
国家电网电力安全规程适用于国家电网公司系统各单位所管理的运用中的(____)及相关场所。
A. 配电线路、设备
B. 变电站内配电设备
C. 用户配电设备
D. 发电厂内低压配电设备
[单选题]探伤作业中,超声探头就是产生超声波的( )。
A.振源
B.声源
C.振动
D.波动源
[单选题]若一稳压管的电压温度系数为正值，当温度升高时，稳定电压U，将（）。
A.增大；
B.减小；
C.不变；
D.不能确定。
[单选题]挂车后须掌握列车编组情况，按规定进行列车制动试验，并将（ ）起止时间记录在司机手册上。
A.列检作业
B.充、排风
C.排风试验
