热门试题:
[单选题]行李、包裹运价的计价重量以( )为单位,不足1千克的按1千克计算。
A.1千克
B.2千克
C.5千克
D.10千克
[不定项选择题]共用题干
Cell Phone Lets Your Secret Out
Your cell phone holds secrets about you.Besides the names and________(51)that you'ye pro-
grammed into it,traces of your DNA linger on the device,according to a new study.
DNA is genetic material that_________(52)in every cell.Like your fingerprint, your DNA is unique
to you一_______(53)you have an identical twin.Scientists today routinely analyze DNA in blood,
saliva,or hair left__________(54)at the scene of a crime.The results often help detectives identify
________(55)and their victims.Your cell phone can reveal more about you ________(56)you might
think.
Meghan J.McFadden,a scientist at McMaster University in Hamilton,Ontario,heard about a crime in
which the suspect bled onto a cell phone and later dropped the_________(57).This made her wonder
whether traces of DNA lingered on cell phones even when no blood was involved._________(58)she and
colleague Margaret Wallace of the City University of New York analyzed the flip一open phones of 10 volun-
teers.They used swabs to collect__________( 59)traces of the users from two parts of the phone:the
outside,where the user holds it,and the_________(60),which is placed at the user's ear.
The scientists scrubbed the phones using a solution made mostly________(61)alcohol.The aim of
washing was to remove all detectable traces of DN
A.The owners got their phones__________(62)for
another week.Then the researchers collected the phones and repeated the swabbing of each phone once
more。
The scientists discovered DNA that
_________ (63)to the phone's speaker on each of the phones.
Better samples were collected from the outside of each phone,but those swabs also picked up DNA that be-
longed to other people who had apparently also handled the phone.________(64),DNA showed up even
in swabs that were taken immediately after the phones were scrubbed.That suggests that washing won't remove
all traces of evidence from a criminal's device.So cell phones can now be added to the.__________(65)of clues
that can clinch a crime-scene investigation.
_________(64)
A.Generally
B.Surprisingly
C.Disappointedly
D.Shortly
[单项选择]废水从不同角度有不同的分类方法,据不同来源分为生活废水和工业废水两大类,对吗?()
A. 对
B. 错
[单选题]依据DL/T976-2017,绝缘外斗的表面交流泄露电流试验电压是()kv
A.A-17
B.B-20
C.C-35
D.D-45
[单选题]“阴在内,阳之守也;阳在外,阴之使也”说明了
A.阴阳相互对立
B.阴阳互根互用
C.阴阳相互消长
D.阴阳相互转化
E.阴阳相互平衡
[单选题]发药、注射时,如果病人或家属提出疑问应()
A.弃去药物,重新配药
B.报告护士长
C.报告医生
D.重新核对,确认无误,解释后再给药
E.报告主任
[多选题]安全分析内容包括( )。( )
A.人员的思想状态和安全素质;形势任务、驻地环境、民俗习惯、季节气候等对安全管理的影响;事故防范的特点规律
B.安全组织运行、安全制度落实情况;装备、设施安全技术状态
C.保密安全和网络舆情动态情况;主要经验教训;其他不安全因素和预防工作重点
D.安全教育与训练开展;安全基础建设改进和完善
[单选题]SY/T5088-2017水平井井身质量数据采集间隔要求:直井段不应大于300m,稳斜井段和造斜井段不应大于( )。
A.10m
B.20m
C.30m
D.40m
[单选题] 电除尘器运行过程中烟尘浓度过大,会引起电除尘的 ( ) 现象。
A. 电晕封闭;
B.反电晕;
C.电晕线肥大;
D.二次飞扬
[判断题]浓雾天听到对向车辆鸣喇叭,应及时鸣喇叭回应。
A.正确
B.错误
[判断题]链路控制协议中2.048Mb/s的链路的标识是由第三层地址消息单元中的一个字节表示的
A.正确
B.错误
[判断题]紧接压电晶片,声压分布不规则的超声场区域称为近场区。
A.正确
B.错误
[单选题]男,25岁,提重物时突然感右臂疼痛,不敢活动1小时。查体:右臂下部肿胀,可有反常活动,X线示右肱骨下端骨折,可见类圆形边界清楚透光区,轻度膨胀,皮质变薄,无骨膜反应,可能的诊断是:
A.骨巨细胞瘤
B.骨肉瘤
C.骨结核
D.骨囊肿
E.骨髓炎
[判断题]对于导轨、翼轨及尖轨、心轨、叉跟尖轨全断面区段,垂直磨耗在钢轨顶面宽1/3处(距标准工作边)测量。
A.正确
B.错误
[多选题]与工程建设关系比较密切的刑事犯罪有()。
A.重大责任事故罪
B.受贿罪
C.重大劳动安全事故罪
D.渎职罪
E.工程重大安全事故罪
[单项选择]施工单位更换信息化管理员时,应经()同意。
A. 管理员本人;
B. 监理单位;
C. 建设单位;
D. 铁路总公司主管部门.
[多选题] 小脑损伤的典型体征包括( )
A. 眼球震颤
B. 共济失调
C. 随意运动丧失
D. 语言障碍
E. 意向性震颤
[单选题]易导致物体打击事故的人的不全行为是( )
A.A、忽视个人防护用用具的使用
B.B、作业场地塌陷
C.C、立体交叉作业
D.D、施工场所狭窄
[单选题]尿素生成的主要部位是( )
A.肾皮质
B.肾远曲小管上皮细胞
C.肝细胞液
D.肝微粒体与细胞液
E.肝线粒体与细胞液
[单项选择]公路客运车辆以外的其他客运机动车载人超过核载人数不足百分之二十的,处()。
A. 暂扣30天驾驶证
B. 吊销驾驶证
C. 扣留车辆
D. 100元罚款
[填空题]电流通过导体时,使导体发热的现象称为()。
[判断题]采用邻联甲苯胺-亚砷酸盐比色法测定余氯时,水样中余氯与邻联甲苯胺作用,生成黄色化合物后再加入亚砷酸盐时,颜色不再变化。
[单选题]破伤风最初出现典型的肌肉强烈收缩是
A.面肌
B.颈项肌
C.背腹肌
D.四肢肌
E.咬肌
[单选题]燃烧的三要素是( )。只要缺少三要素中任何一个要素,
燃烧就不能进行。扑救森林火灾时,只有消除其中一个要素,森林燃烧就会停止。
A.可燃物、氧气、温度
B.可燃物、氧气、湿度
C.氧气、温度、气压
D.可燃物、气压、氧气
[多选题]智能变电站二次工作安全措施执行的基本要求如下:在现场执行安全措施时,解除与其他运行设备相连的()、()或()应有明显标记,并做好记录。
A.控制字
B.二次回路
C.硬压板
D.隔断SV/GOOSE网络光纤接线
[单选题]新能源场站的无功功率控制系统应与场站( )协同一致。
A.AGC
B.一次调频
C.高/低电压穿越能力
D.SVG
[单项选择]项目主办部门可对检查项目实施情况开展后评价,从检查准备、检查实施、质量控制、()、后续管理等方面进行总结和评价。
A. 成果利用
B. 检查报告
C. 检查结果
D. 检查计划
[单项选择]
Going Back to Its Birthplace
No sporting event takes hold of the world’s attention and imagination like the Olympic Games The football world Cup fascinates fans in Europe and South America; baseball’s World Series is required viewing in North America; and the world table Tennis Championships attracts the most interest in Asia.
But the Olympics belong to the whole world. Now, after travelling to 17 countries over 108 years, the summer Games are returning to Athens, the place where the first modern Olympics was held.
Participation in the Games is looked on not only as an achievement, but also as an honour. The 16 days between August 13 and 29 will see a record that 202 countries compete up from Sydney’s 199. Afghanistan is back, having been banned from Sydney because the Taliban government didn’t let women do sports. There is also a place for newcomers East Timer and Kiribati.
A total of 10,500 athletes will compete in 28 spo
A. Right
B. Wrong
C. Not mentioned
[单选题]列关于应收账款收账政策的表述中,正确的是( )。
A.只要增加的收账费用大于减少的坏账损失与减少的机会成本之和,就应当采用新的收账政策
B.只要增加的收账费用小于减少的坏账损失与减少的应收账款占用资金的应计利息之和,就应当采用新的收账政策
C.只要增加的收账费用小于减少的坏账损失与减少的存货占用资金的应计利息之和,就应当采用新的收账政策
D.只要增加的收账费用小于减少的坏账损失与减少的机会成本之和,就应当采用新的收账政策
[单选题]航空安全员在预先准备阶段应做好相关准备工作,包括:确认 勤务等级及执勤要求、确认个人岗位职责、明确工作重点以及( )。
A.了解航班风险
B.确保器械上身
C.准备协同
D.了解机组信息
[判断题]P2P对公客户采用线下审核资料验证或首笔支付验证等任一开户方式.( )
A.正确
B.错误
[单选题]单位发放工资要履行()手续,不得超路局下达的年度工资总额计划发放工资。
A.批准
B.审批
C.审阅
D.核对
[单项选择]在代谢性酸中毒原因中,下列哪一项是错误的()
A. 高热
B. 休克
C. 长期不进食
D. 持续大量呕吐
E. 急性肾衰竭
[判断题]信贷管理系统贷款期限变更仅支持展期。
A.正确
B.错误
[多项选择]招标采购项目的人力资源中的组织机构的考核指标有( )。
A. 合理性
B. 逻辑性
C. 准确性
D. 及时性
E. 可操作性
[判断题]国有企业事业单位、机关、团体、部队营造的林木,由营造单位所有。
[单选题]( )是发现和处理故障的主要部门,重点是通过SCADA系统及时切除故障设备,恢复无故障设备的供电。
A.电调
B.高铁电力工区
C.供电段调度
D.高铁供电车间