热门试题:
[单选题]上海铁路局关于公布《上海铁路局客运服务质量管理办法》的通知（上铁客〔2017〕51号）中规定:对发生服务质量问题的单位，由路局客运处予以结果预警，被预警的单位，应在接到预警的（ ）日内，应以书面形式向路局客运处上报整改材料。
A.3
B.5
C.7
D.10
[单选题]资产按照现在购买相同或者相似资产所需要支付的现金或现金等价物的金额计量，体现的会计计量属性是（ ）。
A.历史成本
B.重置成本
C.可变现净值
D.公允价值
[单选题]甲烷传感器是用于监测矿井空气中甲烷气体的（ ）百分比浓度。
A.质量
B.体积
C.密度
D.黏度
[单项选择]关于磁共振对比剂的毒理学，错误的是（）。
A. 自由Gd离子化学毒性强
B. Gd-DTPA进入血液后很快能与血清蛋白结合形成胶体
C. Gd-DTPA不经肝脏代谢
D. Gd-DTPA对肾功能不全者慎用
E. Gd-DTPA发生严重不良反应的概率低
[单选题]大环内酯类抗生素抗菌作用机制是
A.阻碍细菌细胞壁的合成
B.干扰细菌的叶酸代谢
C.影响细菌胞浆膜的通透性
D.抑制细菌蛋白质的合成
E.抑制细菌核酸代谢
[单选题]关于十二烷基硫酸钠(SDS)血红蛋白测定法，正确的叙述是
A.能用吸光度“A”值直接计算Hb浓度
B.突出优点是简便
C.不能用于同时测定白细胞计数和Hb浓度的血细胞分析仪
D.十二烷基硫酸钠不破坏WBC
E.是Hb测定的参考方法
[单项选择]脑型细菌性痢疾患者特征表现为（）
A. 腹痛、里急后重
B. 腹泻、黏液脓血便
C. 高热、畏寒、寒战
D. 精神萎靡、表情淡漠、血压低
E. 剧烈头痛、呕吐、反复惊厥
[单项选择]
Weak dollar or no, $ 46,000-the price for a single year of undergraduate instruction amid the red brick of Harvard Yard-is (1) But nowadays cost is (2) barrier to entry at many of America’s best universities. Formidable financial-assistance policies have (3) fees or slashed them deeply for needy students. And last month Harvard announced a new plan designed to (4) the sticker-shock for undergraduates from middle and even upper-income families too.
Since then, other rich American universities have unveiled (5) initiatives. Yale, Harvard’s bitterest (6) , revealed its plans on January 14th. Students whose families make (7) than $60,000 a year will pay nothing at all. Families earning up to $ 200,000 a year will have to pay an average of 10% of their incomes. The university will (8) its financial- assistance budget by 43%, to over $ 80m.
Harvard will have a similar arrangement for families making u
A. cheap
B. reasonable
C. high
D. expensive
[判断题]凡经批准报废的车辆,企业应及时办理吊销营运证,不得转让或挪作他用,总成和零件不得拼装车辆,车辆报废相关材料应至少保存2年。
A.正确
B.错误
[单项选择]欢乐在线主副号（本地号码）A在揭阳，B在的珠海，两人通话78分钟，如何收费？（）
A. 按各自资费标准收取
B. 免费
[单选题]CTCS-2车站列控中心设备接地电阻一般不大于( )。[311050203]
A.3Ω
B.4Ω
C.5Ω
D.10Ω
[单项选择]一般的建筑屋面防水等级为（）。
A. Ⅰ
B. Ⅱ
C. Ⅲ
D. Ⅳ
[单项选择]什么是和谐的员工关系？（）
A. 沟通自由
B. 以人为本，彼此信任
C. 互相帮助，关心利益
D. 诚实守信，以理服人
[单选题]机泵润滑油能形成( ),防止输送介质泄漏,提高效率。
A. 气封
B. 液封
C. 密封
D. 封闭
[单选题]大队以下单位应当成立由本单位主要领导和有关人员组成的( )。
A.安全工作委员会
B.安全工作小组
C.安全管理领导小组
D.安全管理小组
[判断题]AVC系统正常运行过程中可以修改软件中设定的计算和控制参数。(0.5分)
A.正确
B.错误
[填空题]TD-SCDMA辅助频段的频率范围为（），带宽为40MHZ，频点数为25个
[单选题]高处作业，除有关人员外，他人不得在工作地点的下面通行或逗留，工作地点下面应( )。
A.有遮栏（围栏）或装设其他保护装置
B.有遮栏
C.有围栏
D.装设其他保护装置
[单选题]电压互感器与电力变压器的区别在于（ ）。
A.电压互感器有铁芯，变压器无铁芯
B.变压器的额定电压比电压互感器高
C.电压互感器主要用于测量和保护，变压器用于不同电压等级电能传递
[单项选择]女，2岁。生后逐渐发绀加重。1岁半会走，但自己不肯走，喜下蹲，有发绀、杵状指。查体：胸骨左缘第3肋间闻及Ⅲ级收缩期吹风样杂音，肺动脉瓣听诊区第2音减弱。血红蛋白210g/L，心电图示右心室肥厚，胸部X线示肺纹理减少，呈"靴形心"。最可能的诊断是（）
A. 室间隔缺损
B. 房间隔缺损
C. 二尖瓣狭窄
D. 法洛四联症
E. 三尖瓣狭窄
[单项选择]
WebSQL is a SQL-like （） language for extracting information from the web. Its capabilities for performing navigation of web （） make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a（） , all the pages that can be reached from a given URL through （） that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common （） Interface.
make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a（）
A. hypertext
B. page
C. protocol
D. operation
[多项选择]请顺序排列出，小企业采取目标市场营销的STP战略步骤（）。
A. 市场细分
B. 促销
C. 市场定位
D. 目标市场选择
E. 产品定价
[单选题]道口护轨两端做成喇叭口，距护轨端300mm处弯向线路中心，其终端距钢轨工作边应为（ ）mm。
A.100～150
B.150～180
C.180～210
D.210～240
E.250
F.260
[单项选择]某投资项目的经营期为4年，无建设期，投产后每年的净现金流量均为120万元，原始总投资240万元，要求的最低投资利润率为10%，(P/A，10%，4) =3.1699，则该投资项目的年等额净回收额为( )万元。
A. 48.67
B. 51.83
C. 26.18
D. 44.29
[多选题]实行（ ）的设备、项目，需经本单位批准。
A.远方遥控操作
B.手动操作
C.就地操作
D.程序操作
[判断题]分水器主要用于火场供水，在高层建筑中供水时具有泄压作用。( )
A.正确
B.错误
[单项选择]按通用服务礼仪的规定，在仪容仪表要求中，以下不属于女士仪容的"面容"要求的是（）
A. 工作时化淡妆
B. 眼角不可留有分泌物
C. 戴眼镜，应保持镜片的清洁
D. 保持鼻孔清洁
[多项选择]实现激励功能的两个要素是( )。
A. 动机
B. 需要
C. 能力
D. 激励
E. 满足
[单项选择]
Moderate Earthquake Strikes England
A moderate earthquake struck parts of southeast England on 28 April 2007, toppling chimneys from houses and rousing residents from their beds. Several thousand people were left without power in Kent County. One woman suffered minor head and neck injuries.
"It felt as if the whole house was being slid across like a fun-fair ride," said the woman.
The British Geological Survey said the 4. 3-magnitude quake struck at 8:19 a.m. and was centered under the English Channel, about 8.5 miles south of Dover and near the entrance to the Channel Tunnel.
Witnesses said cracks appeared in walls and chimneys collapsed across the county. Residents said the tremor had lasted for about 10 to 15 seconds.
"I was lying in bed and it felt as if someone had just got up from bed next to me." said Hendrick van Eck, 27, of Canterbury about 60 miles southeast of London. "I then heard the sound of cracking, and it was getting heavier and heavier. It felt as if someone was at the end of my bed hopping up and down."
There are thousands of moderate quakes on this scale around the world each year, but they are rare in Britain. The April 28 quake was the strongest in Britain since 2002 when a 4.8-magnitude quake struck the central England city of Birmingham.
The country's strongest earthquake took place in the North Sea in 1931, measuring 6.1 on the Richter scale. British Geological Survey scientist Roger Musson said the quake took place on 28 April in an area that had seen several of the biggest earthquakes ever to strike Britain, including one in 1580 that caused damage in London and was felt in France. Musson predicted that it was only a matter of time before another earthquake struck this part of England. However, people should not be scared too much by this prediction, Musson said, as the modern earthquake warning system of Britain should be able to detect a forthcoming quake and announce it several hours before it takes place. This would allow time for people to evacuate and reduce damage to the minimum.
During the April 28 earthquake, the whole England was left without power.（）
A. Right
B. Wrong
C. Not mentioned
[多选题]劳务人员优化配置的要求是：（ ）。
A.市场需要
B.结构合理
C.协调一致
D.素质匹配
E.效益提高
[单选题]GSM-R系统中全向收、发天线水平间距应不小于( )。
A.0.5m
B.4m
C.2m
D.3m
[判断题]投资方从联营企业分回的税后利润，既有按规定需要补税的投资收益，又有不需要补税的投资收益。如果投资方发生亏损，可以先用需要补税的投资收益直接弥补亏损，再用不需要补税的投资收益弥补，弥补亏损后还有盈余的，不再补税。 ( )
[判断题]更换配电变压器跌落式熔断器熔丝，应拉开低压侧开关（刀闸）和高压侧隔离开关（刀闸）或跌落式熔断器。
A.正确
B.错误
[判断题]产品优化决策中，只需要根据单位贡献毛益额的大小即可进行最优决策。
[多选题] 党的十九届四中全会提出,坚持和完善独立自主的和平外交政策,推动建设( )的新型国际关系
A. 相互尊重
B. 公平正义
C. 合作共赢
D. 互利互惠
