题目详情
题目详情:

[单项选择]关于热导池检测器的使用,下列叙述中错误的是()。
A. 使用时热导池要置于恒温箱中
B. 热导池检测器温度应高于或和柱温相近,以防止样品在热导池内冷凝,沾污热导池
C. 在热丝接通电源之后再通入载气
D. 工作完毕要先停电源,再关载气

热门试题:

[单选题]会员公司不应向医疗卫生专业人士(无论是直接 2181
A.或间接)提供个人礼品(如:体育或娱乐项目的
B.正确
C.错误
[判断题]全面综合计划实施公司统一项目库管理,包括项目需求库、规划库、储备库、计划库管理。( )
A.正确
B.错误
[单选题]工作环境噪声超过( )dB,必须按规定佩戴耳塞。
A.60
B.70
C.80
D.90
[多项选择]安全评估过程中,经常采用的评估方法包括()。
A. 调查问卷
B. 人员访谈
C. 工具检测
D. 手工审核
E. 渗透性测试
[单选题]线路允许速度为140 km/h圆曲线或夹直线最小长度,一般情况为( )m。
A.90
B.80
C.70
D.60
[单项选择]


A. measures
B. measure
C. Is measured
D. was measured
[多选题]液化石油气泄漏事故处置程序的内容有( )。
A.接警出动
B.个人防护
C.现场询情
D.侦察检测
E.筑堤导流
[简答题]患者,女,56岁。腹胀伴肛门坠胀感1个月。患者1个月以来感腹胀,恶心未呕吐,伴阴部酸胀、肛门坠胀感。门诊以"卵巢病变"收入院。患者既往体健,12岁初潮,7/29天,量中等,无痛经。已绝经8年,G3P1。否认高血压、糖尿病等病史。体检:T37.2℃,P72次/分,R20次/分,BP130/80mmHg。一般情况尚好。心肺未见异常。腹部膨隆,未见肠型及蠕动波,肝脾肋缘下未触及,移动性浊音(+),肠鸣音可闻。妇科检查:阴道畅,后穹窿可触及多个无痛性结节,宫颈光滑,子宫前位,正常大小,质地中等,与左侧附件肿物粘连,压痛。左侧卵巢可触及一囊实性肿物,大小约6cm×8cm×10cm,活动度差。右侧附件囊实性肿物,直径约6cm,不活动,无压痛。要求:根据以上病历摘要,请写出初步诊断、诊断依据(如有两个以上诊断,应分别写出各自诊断依据,未分别写出扣分)、鉴别诊断、进一步检查与治疗原则。
[判断题]
能使继电器动合接点由断开状态到闭合状态的最小电流称为动作电流。
A.正确
B.错误
[多选题]多项选择题:钳工的种类有(   )。
A. 机修钳工
B. 工具钳工
C. 装配钳工
D. 机加钳工
[单选题]关于印花税的说法,错误的是( )。
A.书立各类合同时,以合同当事人为纳税人
B.在中国境内使用并有法律效力的应税凭证如在境外书立,不需要缴纳印花税
C.现行印花税纳税人将外商投资企业和外国企业包括在内
D.建立营业账簿,以立账簿人为纳税人
[单选题]【单选】
#5、#6炉引风机电机轴承温度应()℃。
A.<80
B.<75
C.<70
D.<65
[单选题]自动站间闭塞区段,遇发车进路信号机故障时,列车越过发车进路信号机的行车凭证为( )。
A.半自动闭塞发车进路通知书
B.绿色许可证
C.路票
[单选题]关于切开拔除阻生智齿的切口设计,错误的是
A.远中切口尽量偏舌侧
B.颊侧切口一般不必超过前庭沟
C.如仅用远中切口就可以消除阻力,可不作颊侧切口
D.应做黏骨膜全层切开,紧贴骨面将瓣翻起
E.缝合后切口下应有足够骨支持
[单选题]B类装修材料内照射指数IRa的限值为不大于 ( ) 。
A.A、1.0
B.B、1.3
C.C、1.5
D.D、0.9
[判断题]水泥试验用水泥试样,标准砂和用水及试模的温度均应与试验室温度相同。
[判断题] ()图样中的尺寸是机件的实际大小,与图形大小及绘图的准确度有关。
A.正确
B.错误
[单项选择]有一条路,现在想在路的一边立电线杆,已知路长为100米,且每隔10米立一个电线杆,那么一共需要( )个。
A. 9
B. 10
C. 11
D. 12
[单项选择]重大事故的发生具有突发性和( )。
A. 必然性
B. 关联性
C. 偶然性
D. 不可避免性
[不定项选择题]共用题干 Optimists Really Do Live Longer,Say Scientists
1 For the philosopher Arthur Schopenhauer optimism was fundamentally wrong,banal and corrupting while the father of psychoanalysis Sigmund Freud simply declared it to be neurotic.
2 Experience shows that looking on the bright side of life does have advantages and recent scientific evidence points to the positive mindset as being beneficial to health.In other words,optimists live longer.
3 That was the conclusion reached by experts at the Mayo Clinic in the US State of Minnesota who evaluated answers given by people to a set of questions in the 1960s.Of the 729 candidates,200 had died and according to scientists,there were a disproportionate number of pessimists among them.
4 Ten points more on the pessimism scale-that was the difference between"slightly pessimistic"and "averagely pessimistic”-were enough to boost a person's chances of dying by 19 percent,according to the study by prominent psychologist Martin Seligman of the University of Pennsylvania.
5 The study does not say why pessimists die.But an older survey taken among children in San Francisco and Los Angeles makes it clear that personal attitude towards the world is a key factor in the ion- gevity equation.
6 The latest evidence to support the theory that optimists tend to cope better with illness of all kinds has been provided by Professor Raif Schwarzer of Berlin's Free University who questioned 600 heart and lung patients.His conclusion:Optimists recover more swiftly from operations than their pessimistic counter- parts,tend to be happier after treatment and return to work more swiftly.
7 There have been suggestions that optimists do not stay healthier but rather turn into optimists later because they enjoy good health.Numerous surveys have taken into account a person's state of health at the outset and the effect remains the same.
8 Studies have shown that optimists do not blind themselves to reality either.They thus interpret it in a positive way."Sublimating and denying things tend to alter reality but illusions are a way of seeing reality in the best light,"said Californian psychology professor Shelley Taylor.
9 German science journal Buld der Wissenschaft,which carries a major article on the topic in its current March issue,commented on"the right attitude"to having a tumor.
10 It seems psychotherapy can go some way towards extending the life span and life quality of a sick person although a complete recovery using psychological technique alone is unlikely.
1 1 Doctors like,however,to point to the example of US cycling professional Lance Armstrong,who was seriously ill with cancer,but whose unshakeable optimism helped him to take the top trophy twice at cycling's premier Tour de France.
1 2 The magazine also quoted a study by Sheldon Cohens of the Carnegie-Mellon-University in Pittsburgh: 420 volunteers were deliberately infected with strains of various common cold viruses.A day later checks were carried out to see who had caught a cold.
13 The results showed that in the case of people who had.satisfactory,long-term relations with friends, neighbors or colleagues, the virus was less likely to trigger a cold.Of people with three or fewer firm relation- ships 62 percent became ill compared with only 35 percent of those who had six or more close human links. An optimist does not necessarily try______.
A.to avoid unpleasant things in life
B.in looking on the bright side of life
C.less likely to catch cold
D.how one looks on life
E.to be unhappy all the time
F.more likely to get cancer
[判断题]建筑封顶证明工积的主体结构已经完成。
[单选题]下列高分子材料可用作肠溶包衣材料的是( )。
A.纤维醋法酯
B.羟丙纤维素
C. 糊精
D.羧甲淀粉钠
[判断题]特种设备作业人员考试和审核发证程序包括:考试报名、考试、领证申请、受理、审核、发证。( )
A.正确
B.错误
[单选题]检修设备和可能来电侧的断路器、隔离开关应断开(  ),隔离开关操作把手应锁住,确保不会误送电。
A.A.控制电源和合闸电源
B.B.控制电源和分闸电源
C.C.分闸电源和合闸电源
D.D.直流电源和合闸电源
[判断题]《物权法》第九条规定,不动产物权的设立、变更、转让和消灭,经依法登记,发生效力;未经登记,不发生效力,但法律另有规定的除外。( )
A.正确
B.错误
[简答题]园内发现有传染病幼儿应该怎么处理?
[单选题]横越停有机车车辆的线路时,先确认机车车辆暂不移动,然后在该机车车辆( )以外通过。严禁在运行的机车车辆前面抢越。
A.2m
B.3m
C.4m
D.5m
[单项选择]治疗宜首选:
A. 天王补心丹
B. 知柏地黄汤
C. 酸枣仁汤
D. 甘麦大枣汤
[单选题]跨越架与被跨10kV电力线路应不小于( )m的安全距离,否则应停电搭设。
A. 0.7
B. 1.5
C. 1.2
D. 1.0
[单选题]线路停电检修工作结束时,应得到()的工作结束报告。确认所有工作班组均已竣工,接地线已拆除,作业人员已全部撤离线路,与记录核对无误并做好记录后,方可下令拆除变电站或发电厂内的安全措施,向线路送电。
A.工作负责人(包括用户)
B. 工作许可人
C. 工作票签发人
D. 工区领导
[判断题]经氢离子交换剂处理后的水质,虽然原水中的部分阴离子,即水中氯离子、硫酸根等在交换过程中并不改变,然而碳酸氢根离子却因生成了碳酸而通过脱气被除去。所以,经氢离子交换剂处理后的水质含盐量降低。()
[多选题]下列关于消防员避火防护服的表述中,正确的是( )。
A.消防员避火防护服是消防员进入火场,短时间穿越火区或短时间在火焰区进行灭火战斗和抢险救援时为保护自身免遭火焰和强辐射热的伤害而穿着的防护服装。
B.穿着消防员避火防护服前,应认真检查消防员避火防护服有无破损,如服装破损严禁使用。
C.穿着消防员避火防护服时无需人员协助。
D.穿着消防员避火防护服可以不佩戴空气呼吸器和携带通信器材。
E.消防员穿着该服装在进行长时间消防作业时,必须用水枪.水炮保护。
[单选题]当( )时变压器的效率最高。
A.铜损大于铁损;
B.铜损小于铁损;
C.铜损等于铁损;
D.变压器满负荷时。
[单选题]在金属球罐使用II类手持电动工具时,其电源线路上应装设什么保护装置?
A.热继电器
B.漏电保护器
C.失压脱扣器
D.以上都对
[判断题]《煤矿安全质量标准化标准》规定:机采工作面挂梁不得落后机组10m,梁端要接顶,不得在无柱悬臂梁再挂悬臂梁。()
A.正确
B.错误
[多项选择]投产竣工阶段的主要内容包括( )。
A. 工程设计
B. 施工安装
C. 调试试运行
D. 竣工验收移交
E. 项目后评价
[单项选择]关于米得(米吐尔)的特性,错误的是 ()
A. 易溶于水
B. 强力显影剂
C. 显影诱导期短
D. 难溶于乙醚和乙醇
E. 对pH值的要求严格

我来回答:

购买搜题卡查看答案
[会员特权] 开通VIP, 查看 全部题目答案
[会员特权] 享免全部广告特权
推荐91天
¥36.8
¥80元
31天
¥20.8
¥40元
365天
¥88.8
¥188元
请选择支付方式
  • 微信支付
  • 支付宝支付
点击支付即表示同意并接受了《购买须知》
立即支付 系统将自动为您注册账号
请使用微信扫码支付

订单号:

截图扫码使用小程序[完全免费查看答案]
请不要关闭本页面,支付完成后请点击【支付完成】按钮
恭喜您,购买搜题卡成功
重要提示:请拍照或截图保存账号密码!
我要搜题网官网:https://www.woyaosouti.com
我已记住账号密码