热门试题:
[单选题]为保证还原炉硅棒生长速率,降低电耗,同时又能有效控制,精制料中的二氯二氢硅含量一般控制在( )
A.1%-2%
B.2%-3%
C.3%-4%
D.4%-5%
[单选题]CRH5型动车组同一动车内两条动力轮对,车轮直径之差不允许大于( )
A.3mm
B.4mm
C.5mm
D.6mm
[单项选择]一侧股四头肌萎缩多见于()
A. 脊髓灰质炎后遗症
B. 外周神经损害
C. 膝关节结核
D. 风湿性关节炎
E. 类风湿关节炎
[单选题]F5-1356液体H报警()
A.0.15
B.0.2
C.0.5
D.0.55
[单项选择]依据《中国南方电网有限责任公司电力安全工作规程》,个人保安线是用于保护工作人员防止()的接地线。
A. 感应电伤害
B. 跨步电压
C. 低压触电
D. 直流电击
[单选题]村镇居民居住区的铁路线路安全保护区的范围,从铁路线路路堤坡脚.路堑坡顶或者铁路桥梁外侧起向外的距离为,不少于()米。
A.8
B.10
C.12
D.15
[单项选择]单位面积上垂直穿过的磁力线数叫做()。
A. 磁通或磁通量
B. 磁导率
C. 磁感应强度
D. 磁场强度
[单项选择]下列为经验教训的实例,除哪项外?()
A. 岗位描述
B. 基本规则
C. 过事件的认可
D. 项目绩效评价
[简答题]起重机在作业中出现异常时,应在吊物稳定状态下进行检修等工作。()
[简答题]当光纤的衰减问题得到解决侯,色散受限就变成了决定系统传输距离的一个主要问题,解决色散问题主要采用那些解决方法?
[单项选择]ITP合并妊娠者妊娠期的处理包括
A. 12周以前就需肾上腺皮质激素治疗者,要考虑终止妊娠
B. 脾切除的时间宜在孕3~6个月
C. 孕期血小板<50×10 9/L有出血倾向者首选肾上腺皮质激素
D. 丙种球蛋白、免疫抑制剂及雄激素在妊娠期不主张使用
E. 输注血小板将刺激体内产生血小板抗体,加快血小板的破坏
[单项选择]()是顾客接受服务时对服务人员的信任情况和服务人员的自信以及他们提供服务时的礼貌和能力。
A. 服务行为
B. 服务反应
C. 服务保证
D. 服务质量
[单项选择]调车作业中,调车人员严禁()。
A. 手抓篷布或捆绑货物的绳索
B. 抓扶车梯
C. 脚蹬手制动机踏板
[单选题]根据《建设工程安全生产管理条例》,总承包单位依法将建设工程分包给其他单位的,分包合同中应当明确各自的安全生产方面的权利、义务总承包单位和分包单位对分包工程的安全生产( )
A.不承担责任
B.承担连带责任
C.不承担连带责任
D.承担责任
[多项选择]病毒性心肌炎病程在1个月以内患儿的常见证型有()
A. 风热犯心
B. 湿热侵心
C. 气阴亏虚
D. 心阳虚弱
E. 痰瘀阻络
[判断题]在信号机上作业必须设人监护。登高柱信号机作业必须使用安全带,人身和手持工具不得侵入距接触网1m,回流线2m以内范围.( )
A.正确
B.错误
[单项选择]对于系统带宽为20MHz时,一共包括()个RB
A. 20
B. 100
C. 200
D. 1200
[多项选择]依据《中华人民共和国特种设备安全法》,特种设备的使用应当具有规定的()。
A. 防护栏杆
B. 安全防护措施
C. 安全距离
D. 有效距离
[单选题]燃气灶具在使用时火焰突然变暗,燃烧器内产生杂音,情况可能是( )。
A.风门太大
B.风门全关
C.风门太小
D.以上三项都是违章
[多选题]原则上接触网停电施工,具备条件时应将该线路停用,比照( )进行安全卡控,并纳入车站( )。
A.封锁线路
B.全站停电
C.施工安全组织措施
D.《站细》
[单项选择]主要用手化工、石油和机械用管道的防腐蚀部位,用于输送强腐蚀性介质、低温或高温介质以及纯度要求很高的其他介质的无缝钢管是()。
A. 锅炉及过热器无缝钢管
B. 地质钻探无缝钢管
C. 不锈耐酸钢无缝钢管
D. 石油裂化无缝钢管
[单选题]轨道电路的组成部分不包括( )。
A.受电端
B.供电端
C.钢轨线路
D. 电 源
[单选题]以下( )不是数控车床高速动力卡盘的特点。
A.寿命长
B.高转速
C.操作不方便
D.夹紧力大
[单项选择]对于喉的淀粉样变性来说,不正确的是()
A. 好发于声带和室带,可伴有气管、口咽、鼻腔等处病变
B. 肉眼表现为瘤样结节型和弥漫浸润型
C. 于小血管、黏膜腺体基底膜和纤维组织处,有形状不规则、淡红色、毛玻璃样无结构物质沉积
D. 刚果红或甲紫染色呈红色
E. 黏膜上皮多呈乳头瘤样增生
[填空题]Besides "American" characteristics-individualism, self-reliance, informality, punctuality and directness, there are also some "national traits" could also be identified.
I. Some of the national traits:
1) Being friendly. There are all kinds of friendships for Americans, such as (1) .
2) Having many questions. Some of American’s questions are (2) .
3) Internationally naive. Many Americans are not very knowledgeable about international geography or world (3)
4) Be nervous about silence. Talking about (4) is always a good way to break silence in a conversation.
5) Open and eager to (5)
II. Cultural rules that make Americans more comfortable with you:
1) Queuing up.
2) Blow their noses into a tissue. It’s considered to be rude to spit, clear phlegm or (6)
3) Avoid to slurp, chew noisily or open your mouth while chewing.
4) Never asking questions about
[单项选择]The mental health movement in the United States began with a period of considerable enlightenment. Dorothea Dix was shocked to find the mentally ill in jails and almshouses and crusaded for the establishment of asylums in which people could receive human care in hospital-like environments and treatment which might help restore them to sanity. By the mid 1800s, 20 states had established asylums, but during the late 1800s and early 1900s, in the face of economic depression, legislatures were unable to appropriate sufficient funds for decent care. Asylums became overcrowded and prison-like. Additionally, patients were more resistant to treatment than the pioneers in the mental health field had anticipated, and security and restraint were needed to protect .patients and others. Mental institutions became frightening and depressing places in which the rights of patients were all but forgotten.
These conditions continued until after World War Ⅱ. At that time, new treatments were discove
A. inflexible and insensitive
B. detached and neutral
C. understanding and sympathetic
D. enthusiastic and supportive
[判断题]普速接触网抢修时现场负责人、驻站联络员和防护人员应佩戴明显的标志,各司其职。
A.正确
B.错误
[判断题]《铁路旅客运输服务质量规范》中要求,被芯、枕芯先加装包裹套,再使用被套、枕套。
A.正确
B.错误
[多选题]固体可燃物的燃烧面积与()有关。
A.水枪的流量
B.一次灭火用水量
C.火灾的蔓延速度
D.消防用水储备量
E.火灾延续时间
[单选题]除牵引供电专业人员按规定作业外,任何人员及所携带的物件、作业工器具等须与牵引供电设备高压带电部分保持( )以上的距离。
A.2m
B.2.5m
C.3m
[单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}}
A. The man should try to be more understanding.
B. The man’s wife should be more understanding.
C. The man’s negative attitude may be derived from his childhood.
D. The pessimism of man’s wife may be the result of her past experiences,
[多项选择]吐血之胃热壅盛的选方是()
A. 归脾汤
B. 黄土汤
C. 泻心汤
D. 龙胆泻肝汤
E. 十灰散
[单选题]按照疫情防控相关要求,各施工单位复工前除满足教育培训、考试考核相关要求外,还应自行筹备必要的口罩、消毒液等防护物品,原则上储备不低于现场使用( )天的所需量。
A.3
B.5
C.7
D.14
[单选题]车站气体灭火采用的灭火剂是()
A.IG541
B.CO2
C.卤代烷
D.N2