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[单选题]对热原性质的描述,正确的是( )。
A.耐热,不挥发
B.耐热,不溶于水
C.有挥发性,但可被吸附
D.溶于水,不耐热
E.不挥发,不被吸附

参考答案:A
热原是微生物产生的一种内毒素,它存在于细菌的细胞膜和固体膜之间。性质有:①耐热性;②过滤性;③吸附性;④水溶性;⑤不挥发性;⑥其他:热原能被强酸、强碱所破坏,也能被强氧化剂氧化,超声波及某些表面活性剂(如去氧胆酸钠)也能使之失活。

热门试题:

第1题:[判断题]国债及地方政府债券利息收入均免征企业所得税和增值税。
A.正确
B.错误
参考答案:A


第2题:
[单选题]参阅图2-12广州/白云机场图,RWY02L/20R跑道长宽为3800×60M,则20R跑道的可用起飞距离为:
A.3800m
B.3600m
C.3920m
D.3720m
参考答案:A


第3题:
[单选题] 柴油机-发电机组通过( )个支承安装于机车上,用于承受柴油机---发电机组的重量和减少柴油机振动对车架的影响。《东风7型内燃机车乘务员》P90T229
A.4
B.5
C.7
D. 9
参考答案:A


第4题:[单选题][T]BC013 5 1 3
螺杆钻具头数越少,转速越( )。
A.高,扭矩越小
B.低,扭矩不变
C.不变,扭矩越低
D.低,扭矩越大
参考答案:A


第5题: [判断题]
发动机失速,不可能发生在A/C工作时。
参考答案:错

第6题:
[判断题]用电检查中周期检查、专项检查宜使用现场作业工作卡。
A.正确
B.错误
参考答案:A


第7题:
[判断题]公民、法人和其他组织对消防技术服务机构及其从业人员的执业行为进行举报、投诉的,消防机构应当及时进行核查、处理。( )[中]
A.正确
B.错误
参考答案:A


第8题:
[多选题]转子的转速测量主要用于__(  )_____。
A. 转速显示和零转速功能;
B. 提供键相参考;
C. 确定振动频率;
D. 转子旋转率的比较分析。
参考答案:ACD


第9题:
[判断题]评价汽车动力性能(除功率因素外),应与汽车的使用性质、总质量、结构等因素相联系。( )
A.正确
B.错误
参考答案:A


第10题:
[单选题]司机报晃车,添乘人员接到添乘检查指令后,立即携带GSM-R手持终端,( )内赶到就近车站(通道口)等待添乘后续列车。到达车站后及时报生产调度指挥中心。
A.10分钟
B.15分钟
C.20分钟
D.25分钟
参考答案:D


第11题: [单项选择]
下列除哪项外,均为陈皮的适应证()
A. 湿浊中阻,纳呆便溏
B. 脾胃气滞,脘腹胀满
C. 脾胃气虚,消化不良
D. 痰湿壅滞,咳嗽痰多
E. 肺胃阴伤,咽干口渴
参考答案:E

第12题:
[单选题]下列不属于高层民用建筑的一项是()。
A.10层的居住建筑
B.建筑高度为25.0m的2层公共建筑
C.10层以上的居住建筑
D.建筑高度为25.0m的单层公共建筑
参考答案:D


第13题:
[多选题]基层建设标准对党忠诚方面中理想信念坚定( )。
A.坚定马克思主义信仰
B.拥护党的理论和路线方针政策
C.忠于党、忠于社会主义、忠于祖国、忠于人民
D.永远做党和人民的忠诚卫士
参考答案:ABCD


第14题:
[多选题]手持电动工器具如有( )或有损于安全的机械损伤等故障时,应立即进行修理,在未修复前,不得继续使用。
A.绝缘损坏、电源线护套破裂
B.电源线护套油污
C.保护线脱落
D.插头插座裂开
参考答案:ACD


第15题: [单项选择]
当委托人和承包人发生争议时,监理机构应根据自己的职能,以( )的身份判断,公正地进行调解。
A. 委托人
B. 承包人
C. 独立
D. 双方
参考答案:C

第16题:
[多选题]甲、乙二人合作研制出一种新型加机器人,申请专利并获得授权。某公司与甲、乙二人商谈,提出获得许可实施该专利的意向。甲以某公司商业信誉不佳为由拒绝,乙随后独自与该公司签订专利实施普通许可合同,许可费20万元。甲自己实施该专利,获得收益5万元。则以下说法哪些是错误的?
A.乙可以不经甲同意转让该专利
B.乙享有的发明人的署名权不可转让
C.甲获得的5万元收益应当合理分配给乙
D.乙获得的20万元使用费应当合理分配给甲
参考答案:AC
A 选项,处置专利权或者专利申请权,例如转让、放弃、独占许可、排他许可、质押、公司入股、赠与 等,应当取得全体共有人的同意,A 选项错误。B 选项,署名权属于人身权,不能转让,B 选项正确。C 选项,共有人 之间没有约定如何行使权利的,共有人可以不经其他专利权人同意单独实施,获取的收益不与其他共有人分享,C 选 项错误。D 选项,专利权的共有人之一有权单独对专利权进行普通许可,使用费应当在共有人之间分配,D 选项正确。

第17题: [简答题]
设平面闭区域D={(x,y)|x-y+1≥0,x+y-3≤0,且x+3y-3≥0}求函数f(x,y)=3x-y在D上的最小值,并说明理由。
参考答案: 函数f在D上的最小值为-1,运用线性规划可得,解析略。

第18题:
[单选题]白细胞异常形态中表现为成熟中性粒细胞核分叶能力减退的是
A.Alder-Reilly畸形
B.Pelger-Hiet畸形
C.Chedialk-Higashi畸形
D.May-Hegglin畸形
E.毒性变化
参考答案:B


第19题:
[填空题]在50kg/m及以下基本轨在到发线上垂直磨耗超过 ( ) mm,时应及时修理或更换
参考答案:8


第20题:
[单选题]实战演练时间须在施工周计划发布前确定,()根据演练方案对施工周计划进行安排,优先保证演练。
A.安全技术部
B.调度票务中心
C.教育培训部
D.设备归属部门(中心)
E.略
F.略
G.略
H.略
参考答案:B


第21题: [多项选择]
What is important when recruiting new staff How to attract the well-qualified people
参考答案:Suggested answer:
a.You can see global integration taking place. China has become the center of multinational companies’ global strategy and, increasingly, Chinese companies are looking outwards. For these reasons, the demands on HR in China are much greater than anywhere in the world.
b.The greatest challenge is in recruiting enough people of the right caliber. Being able to ensure quality and breadth of experience, while hiring at the rate required, is no easy task. Many of the regulations and much of the red tape that used to typify running a business in China are being reviewed and compensation, benefits and conditions are regularly updated.
c.A lot of companies are struggling. I don’t think anyone has the answer. It is just the sheer speed of change. Not so long ago HR managers mainly handled recruitment, payrolls, leave entitlement and the day-to-day administration of personnel matters. Their role then expanded to include acting as an employee representative on trade union committees and, in the past five years, the function has broadened again into that of a strategic business partner serving the current the future needs of the company as a whole.
d.The requirement now for good HR managers is they need to understand the business, have functional expertise and understand people. It is important to be outgoing, focused on people, to know the name and role of all employees and be“politically savvy”without playing politics.
e.In China it is a little different. Things are at a crossroads and this requires human resources to be a lot more strategic and creative. However, the overall shortage of well-qualified people has opened up a raft of new opportunities for China HR professionals who are ready to make a move and prepared to try their luck across the country.
f.We have found, though, that the crucial thing in attracting and holding on to good staff is how much they believe in the company and its future direction. The ’techie’ people admire the products and management vision and want to contribute to the company; others enjoy working in a competitive environment where new things are coming in every day.
g.New recruits are reminded of this during their induction program. It covers the basics of organizational structure and lines of business, plus a fuller orientation about the global IT function and networks. They are also assigned a“buddy”, mentor. Their role is more informal, top discusses things over coffee or lunch, but there are also clear guidelines setting out what must be covered. The feedback from new hires has been very positive, and they say they wouldn’t have learnt so quickly without the system.
h.In view of the increasing importance of China within the company’s worldwide group, particular efforts are made to make employees feel part of the company. There is a real emphasis on communication. Every effort is made to make people feel part of the team and understand expectations. Staff is also encouraged to put forward ideas and comments about whatever concerns them. These are reviewed at management meetings and changes are made if appropriate.
i.In planning for this year, the company will aim to refine the hiring tools and focus more on career development for existing staff. Gaps in both technical and professional skills will be more clearly identified and a training road map sketched out for individuals. While employers are aware that staff retention is becoming a key issue elsewhere, it does not concern them too much. The companies realize they must pay competitively and regard this as a‘hygiene factor’—one of the first things you must clear up.
j.The companies should understand that staff responds well to a corporate culture and clearly stated values. Employers must also explain the company’s plans for growth and outline realistic career prospects for potential recruits. The general standards in China are improving all the times. The people are results-driven, willing to learn international practices and very competitive when you compare them with others in the Asia-Pacific region.
k.While the first stage consists of individual intentions. There’re followed by group exercises. There are three exercises and they last about BD hours. I suppose ideally they shouldn’t be longer. But then there are some practical constraints. Anyway the process itself gives people the opportunity to display certain skill, like the ability to work in a team or the ability to plan and organize.
l.We can teach graduate employees certain things such as leadership techniques and we also encourage certain things with rewards, initiative, for example. But the basis of our approach is career development for all graduates, not just the real high flyers. We actually think that the company benefits more from improving the performance of typical graduates and not just the select few.
答案解析:[解析] savvy知晓,理解,聪慧。entitlement应得的权利,津贴,补贴。outgoing外发的,爽直的,即将离职的。typical典型的,特有的。flyer“满天飞”,小广告传单。high

第22题:
[单选题]帕金森病的典型步态是( )。
A.慌张步态
B.跨阈步态
C.剪刀样步态
D.醉汉步态
参考答案:A
慌张步态是指帕金森病或基底节病变时,步态短而快,并出现阵发性加速,不能随意停止或转向,上肢摆动缩小或停止。跨阈步态是指由于踝背伸肌无力,表现出足下垂,摆动期增加屈髋和屈膝以防止足尖拖地。剪刀样步态多见于脑瘫及高位截瘫的患者,因为内收肌痉挛,步行时两髋内收,两下肢交叉,不能步行,或双膝互相摩擦跳跃,步态不稳。醉汉步态是指当小脑或前庭系统损害时,上下肢肌张力减退、辨距不良或躯干平衡障碍,故跨步时步伐大,步距加宽,躯干摇晃不定而呈酒醉状。

第23题:
[多选题]《行规》第1条:工务部门须向相关使用部门、单位提供防灾系统资料:()等防灾系统报警设备位置、使用说明。
A.异物侵限
B.雨量报警
C.风速报警
D.地震报警
参考答案:ABC


第24题: [填空题]下面是路由器R3的部分配置,请根据题目要求,完成下列配置。
R3(confg)# access-list 110 deny (8) 192.168.20.0 0.0.0.255 10.10.10.00.0.0.255 eq (9)
R3(config)# access-list 110 permit ip any any

参考答案:tcp

第25题:
[单选题]电源为三角形连接的供电方式为三相三线制,在三相电动势对称的情况下,三相电动势相量之和等于(____)。
A.E
B.0
C.2E
D.3E
参考答案:B
《电能计量技术》教材

第26题: [单项选择]
所谓()监测是注水开发油藏采取以分层注水为重点的一整套分层开采技术的最直接的依据,是认识分层开采状况和采取改善油藏注水开发效果措施的重要基础。
A. 分层测井
B. 分层流量
C. 固定流量
D. 分层流压
参考答案:B

第27题:
[单选题]进路锁闭引导接车时,其引导信号关闭的时机是( )。
A.松开引导按钮YA后YXJ↓
B.办理引导进路解锁YJJ↑→YXJ↓
C.车进入进路内第一个区段IAGJ↓→YXJ↓
D.车完全进入股道后YXJ↓
参考答案:C


第28题: [单项选择]
下列关于留置权与抵押权、质权关系的描述中,错误的是( )
A. 同一财产法定登记的抵押权与质权并存时,抵押权人优先于质权人受偿
B. 同一财产抵押权与留置权并存时,留置权人优先于抵押权人受偿
C. 同一动产上已设立抵押权或者质权,该动产又被留置的,留置权人优先受偿
D. 同一财产抵押权与留置权并存时,抵押权人优先于留置权人受偿
参考答案:D
答案解析:[解析] 《担保法》司法解释第七十九条规定:“同一财产法定登记的抵押权与质权并存时,抵押权人优先于质权人受偿。同一财产抵押权与留置权并存时,留置权人优先于抵押权人受偿。”《物权法》规定:“同一动产上已

第29题:
[单选题]工作期间()必须始终在工作现场,对工作班人员的安全认真监护,及时纠正违反安全的动作。
A.工作许可人
B.被监护人员
C.工作负责人
参考答案:C


第30题: [填空题]
从全部总体单位中随机抽选样本单位的方法有两种,即()抽样和()抽样。
参考答案:重复;不重复

第31题: [单项选择]
隐性黄疸时,肉眼未见黄疸,胆红素浓度已升高,但一般不超过( )
A. 17.1μmol/L
B. 34.2μmol/L
C. 51.3μmol/L
D. 68.4μmol/L
E. 85.5μmol/L
参考答案:B

第32题: [单项选择]
对于邪教组织和组织、利用邪教组织破坏法律实施的犯罪分子,以各种手段非法聚敛的财物、用于犯罪的工具、宣传品等,应予()
A. 没收
B. 追缴
C. 依法追缴和没收
参考答案:C

第33题: [判断题]
脉冲电镀的根本特征是把直流电镀改为周期变化的脉冲电流电镀。
参考答案:错

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