热门试题:
[单选题]兰姆波可用于检验（ ）。
A.锻件
B.棒坯
C.铸锭
D.薄板
[单选题]( )是指对人、动物构成严重威胁，具有侵袭性、传染性、转移性、致病性和破坏性的生物安全事故。
A. 核与辐射事故
B. 生物事故
C. 化学事故
D. 恐怖袭击
[判断题]泵的支架没有冷却室。[T/]
A.正确
B.错误
[判断题]拌合砂浆时水的温度不得超过80℃，砂的温度不得超过40℃。
A.正确
B.错误
[单选题]《普速行规》规定：线路所通过信号机不能开放时，按出站信号机故障的相关规定办理发车或通过作业。发车人员在（ ）交付调度命令、行车凭证及显示通过手信号。
A.通过信号机外方
B.通过信号机内方
C.线路所
D.行车室
[单选题]BFL413F.B/FL513系列柴油机采用较强涡流的（）燃烧系统，为加速混合气形成，保证在燃烧室中建立一定涡流比的空气涡流，采用了螺旋气道。
A.A
B.Z
C.Y
D.ω
[多项选择]下列哪些属于处方后记的内容( )
A. 医师签名
B. 药品金额
C. 审核、调配、核对、发药的药学专业技术人员签名
D. 医疗、预防、保健机构名称
E. 开具日期
[单选题]轨道车运行控制设备（GYK）具有轨道电路信息接收、运行监控、警醒、数据记录、语音记录及（ ）等功能。
A.运行记录
B.人机交互
C.数据分析
D.警惕
[单选题] 湿疹的护理的要点∶根据医生要求进行涂药( )。
A.不用刺激性止痒药
B.保持皮肤清洁
C.避免感染
D.以上都是
[单选题] ( ) 为较大事故。
A.繁忙干线客运列车脱轨18辆以上并中断铁路行车48 h以上
B.客运列车脱轨2辆以上18辆以下并中断繁忙干线铁路行车24 h以上或者中断其他铁路行车48 h以上
C.客运列车脱轨2辆以上18辆以下
D.客运列车脱轨2辆以上
[简答题]试述怎样预防散剂结块、变色等变质现象的发生。
[多选题]红线及违章违纪按性质分：（ ）、严重违章违纪、一般违章违纪。
A.红线
B.事故危及
C.事故
D.违章
[多选题]分水器、水枪(炮)阵地应设置在( )且相对安全的位置。(BCD)
A.便于出水
B.便于观察
C.便于进攻
D.便于转移或撤离
[单选题]山地运输的马匹等畜力应经专门驯养。驯养人员应经该工程的()培训，执行山地运输规定。
A.体能
B.技能
C.安全
D.专业
[判断题]使用价值是商品能够满足人们某种需要的属性，即有用性。商品的使用价值是由它的自然属性决定的。
A.正确
B.错误
[单选题] 《供电监管办法》规定,因供电设施临时检修需要停电的,供电企业应当提前(____)小时进行公告。
A. 18
B. 24
C. 48
D. 72
[单选题]’年9月30日起实施的车辆分公司《现场作业安全检查管理规定》中指出，维修部每月将在辖区内检查中发现的（ ）进行汇总报质量管理部。
A.隐患
B.违规行为
C.违章行为
D.违法行为
[单项选择]检验和考试应把握（）。
A. 客观性原则、发展性原则、指导性原则、前瞻性原则
B. 客观性原则、发展性原则、指导性原则、计划性原则
C. 指标性原则、发展性原则、指导性原则、计划性原则
D. 主观性原则、发展性原则、指导性原则、计划性原则
[单项选择]宪法明确规定，国家维护社会主义（）的统一和尊严。
A. 法治
B. 依法治国
C. 法制
D. 法治国家
[不定项选择题]共用题干
1.Flaxseed slowed the growth of prostate tumors in men,while ginseng helped relieve the fatigue that cancer patients often feel,US researchers reported on Saturday in the first scientifically rigorous looks at alternative medicine.
2.The studies reflect doctors' efforts to explore the risks and benefits of foods and supplements that are routinely taken by their patients with little scientific proof they help.Americans spend between￥36 billion and￥47 billion a year on complementary and alternative therapies,according to the National Center for Health Statistics."Patients are taking these compounds but we need to know if they are doing any good or any harm,"said Dr. Bruce Cheson of Georgetown University Hospital in Washington who led a panel on alternative therapies at a meeting of the American Society of Clinical Oncology.
3.In the flaxseed study,researchers at Duke University Medical Center in North Carolina and colleagues evaluated the seed's role as a food supplement in 161 men who were scheduled to undergo surgery for prostate cancer."The growth rate was decreased in the men who got flaxseed,"said Dr. Nancy Davidson,an oncologist at Johns Hopkins University in Baltimore who is president-elect of ASCO."I think this is fascinating."Flaxseed is rich in omega-3 fatty acids-and lignins,a fiber found on the seed coat."We were looking at flaxseed because of its unique nutrient profile,"said Wendy Demark-Wahnefried,a researcher in Duke's School of Nursing,who led the study.
4.Half of the men in the study added 30 grams of fiaxseed daily to their diets for about 30 days.Half of the flaxseed group also went on a low-fat diet.After the surgery,the researchers looked at the men's tumor cells to see how quickly the cancer had multiplied.The cancer cells in both the flaxseed groups grew about 30 to 40 percent slower than the control group.
5.But Demark-Wahnefried is not ready to prescribe flaxseed."It's a healthy food.It has a lot of vitamins and a lot of fiber. But we cannot definitively say at this point you should take flaxseed because it is protective against prostate cancer,"she said,adding that flaxseed now needed to be studied to see if it can prevent prostate cancer.
6.In the ginseng trial,Debra Barton of the Mayo Clinic in Rochester,Minnesota,and col-leagues tested three different doses of the herb on potency with a variety of cancers who were expected to live at least six months. Twenty-five percent of patients taking a 1,000-mg dose and twenty-seven percent of patients taking a 2,000-mg dose said their fatigue symptoms were"moderately better" or"much better."Only 10 percent of those taking a 750-mg dose reported an improvement, which was about the same as the placebo group.Patients in the trial took Wisconsin ginseng from a single crop that was tested for uniform potency.It was powdered and given in a capsule form."I wouldn't have predicted this,I have to admit,"Davidson said in an interview,"we might want to test this on a large scale."
7.The flaxseed study was funded by the National institutes of Health and the ginseng study was supported by US Public Health Service grants.
Paragraph 2__________
A.The Motivation of Flaxseed Study
B.The Study on Ginseng Displays Its Good Promise
C.The Doctors' Responsibility Led Them to Carry Out These Two Studies
D.Ginseng Is As Good to Cancer Patients As Flax-seed
E.The Methods and Results of the Study on Flax-seed
F.A Different Opinion on the Use of Flax-seed
[判断题]熔化极混合气体保护焊是采用在惰性气体中加入一定量的其他惰性气体进行焊接的方法
A.正确
B.错误
[单项选择]心尖区听到舒张期隆隆样杂音，除考虑二尖瓣狭窄的诊断外，还可能是（）
A. 三尖瓣关闭不全
B. 三尖瓣狭窄
C. 左房黏液瘤
D. 主动脉瓣关闭不全
E. 肺动脉瓣关闭不全
[单选题]天然的特异性细胞因子抑制物是
A.IL-1Rα
B.IL-2R
C.IL-4R
D.IL-6R
E.IL-8R
[判断题]层数不超过四层的多层建筑，可将直通室外的安全出口设置在离楼梯间小于等于20m处。
A.正确
B.错误
[判断题]东风8B型内燃机车：当励磁机励磁电流由微机提供时，功调电阻Rgt为功率修正提供取样信号。
A.正确
B.错误
[判断题]运维人员实施不需高压设备停电或做安全措施的变电运维一体化业务项目时，可不使用工作票，但应以书面形式记录相应的操作和工作等内容。
A.正确
B.错误
[判断题]《国铁集团客运部关于12306网站新增业务办理事项的通知》（客营电【2021】15号）规定遇动车组始发前车底置换，列车始发局客票管理所接到车底置换调令后，使用"计划管理"程序"席位置换"功能，生成席位置换通知单，自动同步至站车交互系统，列车工作人员使用站车交互程序中"换座退差"功能，查询席位降级相关信息，核对实际席位使用情况后，为旅客办理退差申请手续。系统收到申请后，启动相应退款流程。
A.正确
B.错误
[填空题]按园林构成的方式分：规则式、自然式、（）三类。
[简答题]
A news report says the growing population around the world is harming the environment. More people are using more of the earth’s natural resources than ever before. Experts say poor people around the world will suffer most in the future unless environmental damage is stopped. They say more should be done to balance human and environmental needs.
The United Nations Population Fund is responsible for studying population growth. It released the report about the subject. It examines the links among environmental conditions, population growth and efforts to help poor people in developing countries.
The world population is now more than 6 billion people. That number has increased by 100% since 1960. The population is expected to increase to more than 9 billion by the year 2050. The report says about 2 billion people lack food security. Water supplies and agricultural lands are heavily used. In 50 years, experts say more than 4 billion people will be living in coun
[多选题]营销现场作业保证安全的技术措施包括（）。
A.A.停电
B.B.验电
C.C.接地
D.D.悬挂标示牌和装设遮拦（围栏）
[单项选择]患者，女，19岁，皮肤漫肿无头，皮色不变，酸痛无热，口淡不渴，舌淡苔白，脉沉细，宜首选（）
A. 细辛
B. 高良姜
C. 肉桂
D. 生姜
E. 花椒
[判断题]
货运站经营者应当按照经营许可证核定的许可事项经营,不得随意改变货运站用途和服务功能。
A.正确
B.错误
[单项选择]油罐内需要动火时，需蒸罐时间不少于（）小时，罐内气体组分的含O2不小于（）。
A. 24 20%
B. 36 20%
C. 48 19.5%
D. 60 19.5%
