热门试题:
[单项选择]甲公司欠乙公司20万元货款,而乙公司则欠丙公司50万元,于是乙公司与甲公司约定由甲公司将欠乙公司的货款直接支付给丙公司,并通知了丙公司。后甲公司迟迟不向丙公司付款。在此情形之下,谁(乙公司还是丙公司)有权要求甲公司承担违约责任:
A. 乙公司
B. 丙公司
C. 乙公司和丙公司
D. 乙公司或丙公司
[多选题]两名以上旅客共持一张代用票要求办理( )手续时,站、车应予以办理。办理时按( )核收手续费。
A.分票
B.分票的张数
C.分乘
D.分乘的人数
[多选题]《煤矿领导带班下井及安全监督检查规定》第十八条规定:煤矿有下列( )情形之一的,给予警告,并处3万元罚款。
A.未建立健全煤矿领导带班下井制度,或者未按规定报煤炭行业管理部门备案和抄送煤矿安全监管部门、煤矿安全监察机构的
B.未建立煤矿领导井下交接班制度的或未建立煤矿领导带班下井档案管理制度的
C.煤矿领导每月带班下井情况未按照规定公示的
D.未按规定填写煤矿领导下井交接班记录簿、带班下井记录或者保存带班下井相关记录档案的
[简答题]
计算题:某汽车生产商欲了解广告费用(万元)对销售量(辆)的影响。收集了过去12年的有关数据,通过分析得到:方程的截距为363,回归系数为1.42,回归平方和SSR=1600,残差平方和SSE=450。要求:
(1)写出销售量y与广告费用x之间的线性回归方程。
(2)假如明年计划投入广告费用为25万元,根据回归方程估计明年汽车销售量。
(3)计算判定系数R2 ,并解释它的意义。
[多项选择]羊水过多对胎儿的影响包括:
A. 早产
B. 胎位异常
C. 肌肉骨骼畸形
D. 食管闭锁
E. 脐带帆状附着
[单项选择]痛痛病事件的污染物是
A. 镉
B. 有机汞
C. 二氧化硫
D. 三氧化二砷
E. 多氯联苯
[单选题]钍钨极和铈钨极应放在()内保存。(安规7.4.3.4)
A.铁盒
B.铝盒
C.铅盒
D.不锈钢盒
[多选题]ZDJ9电动转辙机的外锁闭安装装置的构成( )。
A.密贴调整片
B.锁闭杆组件
C.锁钩组件
D.锁闭框组件
E.尖轨连接铁组件
[单选题]32126】补偿容量的大小与()无关。 ( )
A.电力负荷的大小
B. 单个电容器的容量
C.补偿前电力负荷的功率因数
D. 补偿后所要求提高的功率因数值
[判断题]交流电机按其功能通常分为交流发电机、交流电动机和同步调相机几大类。( )
A.正确
B.错误
[单选题] ZD6-D型电动转辙机的额定转换力为( )。
A.2450N
B.3430N
C.4413N
D.5884N
[判断题]标定EDTA标准滴定溶液时,所用基准试剂不纯可引起系统误差。
A.正确
B.错误
[不定项选择题]共用题干
第一篇
DNA Testing
DNA testing reveals the genes of each individual person.Since the early twentieth century scientists
have known that all human characteristics are contained in a person's genes and are passed from parents to
children.Genes work as a chemical instruction manual for each part and each function of the body.Their
basic chemical element is called DNA,a copy of which can be found in every cell. The existence of genes
and the chemical structure of DNA were understood by the mid-1900s,but scientists have only recently been
able to identify a person from just a drop of blood or a single hair.
One of the most important uses of DNA testing is in criminal investigation.The very first use of DNA
testing in a criminal case was in 1985 in Great Britain,when a man confessed to killing a young woman in
the English countryside.Because police had found samples of the killer's DNA at the scene of the crime,a
biologist suggested that it might be possible to compare that DNA to some from the confessor's blood.To
everyone's surprise,the tests showed that he was not the killer. Nor was he guilty of a similar murder that
had happened some time earlier. At that point he admitted that he had confessed to the crimes out of fear
and police pressure.The police then asked 5,000 local men for samples of their blood,and DNA testing
revealed that one of them was the real murderer,so the first man was set free.
In 1992,two law professors,Peter Neufeld and Bany Scheck,decided to use DNA evidence to help set free
such mistakenly convicted prisoners.With the help of their students.they created a not-for-profit organization
called the Innocence Project. Most of their clients are poor men,many from racial and ethnic minorities.In
fact,studies have shown that U. S. judges and juries are often influenced by racial and ethnic background,and
that people from minority groups are more likely to be convicted. Some of these men had been sentenced to
death,a form of punishment used in thirty eight states out of fifty(as of 2006).For most of these prisoners,their
only hope was another trial in which DNA testing could be used to prove their innocence.
Between 1992 and 2006,the Innocence Project helped free 100 men.Some of these prisoners had been
in jail for ten,twenty years or more for crimes they did not commit.However,the goal of the Innocence
Project is not simply to set free those who are wrongfully in jail.They also hope to bring about real changes
in the criminal justice system.
Illinois in the late 1990s,a group of journalism students at Northwestern University were able to bring
about such a change in that state.They began investigating some Illinois prisoners who claimed to be inno-
cent. Through DNA testing,the students were able to prove that in fact the prisoners were not guilty of the
crimes they had been accused of. Thirteen of these men were set free,and in 2000,Governor Ryan of
Illinois decided to stop carrying out death sentences until further study could be made of the prisoners'
cases。
The use of DNA in criminal cases is still being debated around the world.Some fear that governments
will one day keep records of everyone'sDNA,which could put limits on the privacy and freedom of citizens.
Other people mistrust the science of DNA testing and think that lawyers use it to get their clients free whether
or not they are guilty.But for those whose innocence has been proven and who are now free men,DNA
testing has meant nothing less than a return to life.And with the careful use of DNA testing,no innocent
person should ever be convicted again.
Some students in Northwestern University__________.
A.proved some prisoners were not guilty
B.believed some suspects were from ethnic groups
C.told the governors of Illinois not to free the prisoners
D.showed DNA testing was not always reliable
[多项选择]注册会计师在计划审计工作前需要开展初步业务活动,下列活动中属于初步业务活动的有( )。
A. 评价遵守职业道德规范的情况
B. 详细了解被审计单位及其环境
C. 就审计业务约定条款达成一致意见
D. 针对保持客户关系和具体审计业务实施相应的质量控制程序
[填空题]WTO的《政府采购协议》于()年1月1日正式生效实施。
[单项选择]The students enjoyed ______ with each other in English.
A. to talk
B. talking
C. have a talk
[多选题]各单位应基于以下目的开展任务观察()
A.了解员工的行为习惯
B.检验制度办法或作业指导书的全面性和可操作性
C.跟踪员工的培训效果
D.收集员工的培训需求和合理化建议
E.发现可能导致事故、伤害、损失和无效率的行为或方法
F.跟进上一次任务观察提出现场立即改进措施的执行效果
G.员工对新任务、新标准、程序的执行情况
[单项选择]授权时应依被授权者的才能和知识水平的高低而定。这就是授权的()原则。
A. 因事设人,视能授权
B. 因人设职,视能授权
C. 任人唯贤
[单项选择]多由身体虚弱,气血不足,肝气郁滞,气郁化火,肺阴不足,灼津为痰,痰火凝结,或肝郁化火耗阴而致者是
A. 乳漏
B. 乳疬
C. 乳癖
D. 乳岩
E. 乳痨
[单选题] 701.国务院将()确定为"中国旅游日"。
A.3969.0
B.5月19日
C.43971.0
D.5月22日
[单选题]在施工质量处理过程中,按照施工验收规范和相关的质量标准,并结合实际量测、试验和检测等方法,评价质量事故的处理是否达到预期目的,是否依然存在隐患属于()。
A.事故处理的鉴定验收
B.制定事故处理方案
C.事故处理
D.事故原因分析
[单选题]《高速铁路动车组列车长作业指导书》途中站停作业流程中规定,在垃圾投放站,应督促保洁员及时将垃圾袋投放在( )。
A.指定位置
B.站台上
C.站台白线外
D.站台雨棚下
[单选题]被电击伤并经过心肺复苏抢救成功的电击伤员,都应让其充分休息,并在医务人员指导下进行不少于()的心脏监护现场触电抢救。
A. A.8h
B.B.24h
C.C.30h
D.D.48h
[单选题]职业病危害因素指对()的各种危害。
A.A.从事职业活动的劳动者可能导致职业病
B.B.劳动者可能导致职业病
C.C.从事职业活动的劳动者不能导致职业病
D.D.从事职业活动的劳动者可能导致疾病
[填空题]当单位库存的钢筋规格数量与图表不符时,在满足构造条件下,可以进行______。
[简答题]假设中央银行通过其资产项债券增加调节宏观经济,在各个环节上会遇到哪些可能的干扰?
[多项选择]根据《仲裁法》的规定,下列关于仲裁委员会的表述中,正确的有( )。
A. 仲裁委员会是行政机关
B. 仲裁委员会不按行政区划层层设立
C. 仲裁委员会独立于行政机关
D. 仲裁委员会之间没有隶属关系
[单选题](1分)单选题
1
高渗性脱水最早的临床表现是
A. 口渴
B. 精神萎靡
C. 皮肤弹性差
D. 眼窝凹陷
E. 烦躁不安
[单选题]挂有装载超限货物车辆的列车应按( )规定线路接发。
A.《技规》
B.《行规》
C.《站细》
D.《调规》
[多选题]精心操作电器设备,保持作业现场整洁,坚持( )。
A.文明生产
B.不违章指挥
C.不违章操作
D.不违反劳动纪律
[多选题]第一种工作票()时,可采用总工作票和分工作票。
A.所列工作地点超过两个
B.有两个及以上不同的工作单位(班组)在一起工作
C.工作时间较长
D.工作人数较多
[单项选择]李某,女,36岁。胃脘胀痛经治疗后未见好转,而见胃脘灼痛,痛势急迫,烦躁而怒,泛酸嘈杂,口干口苦,舌红苔黄,脉弦数。治疗宜()
A. 柴胡疏肝散
B. 大柴胡汤
C. 逍遥散
D. 养胃汤
E. 化肝煎
[单项选择]管内一次吸痰时间应限制在()
A. 5秒以内
B. 10秒以内
C. 15秒以内
D. 20秒以内
E. 30秒以内
[单选题]正在紧线时不应从( )上下电杆。
A.紧线侧
B.顺线路
C.顺拉线
杆上作业
[判断题]二次喷射使整个喷射持续时间延长,可提高燃烧的经济性。 ( )
A.正确
B.错误
[单项选择]急性颅内压增高生命体征改变是
A. 血压下降,脉搏快弱,呼吸浅促
B. 血压下降,脉搏慢而有力,潮式呼吸
C. 血压下降,脉搏快弱,呼吸深而慢
D. 血压升高,脉搏慢而有力,呼吸浅促
E. 血压升高,脉搏慢而有力,呼吸深而慢