热门试题:
[多选题]在“倒闸操作过程中误入带电间隔，带电误合接地刀闸”的电气误操作事故中，违反了以下哪些管理规定（）。
A.倒闸操作管理规定
B.“五防”管理规定
C.核查电脑钥匙
D.接地线管理规定
[单项选择]银行业金融机构应加强信息系统风险管理的（）建设，建立人才激励机制，适应信息技术的发展。
A. 专业队伍
B. 干部队伍
C. 科技人才
[判断题]竖直角是在同一竖直面内，视线与水平线的夹角。
A.正确
B.错误
[单项选择]下列不属于“现代演化宇宙观”范畴的一项是( )。
A. 宇宙中亿万个像银河系那样的星系的地位都是平等的。
B. 宇宙包罗万象，演化过程威武雄壮瑰丽奇美。
C. 恒星从弥漫在天宇内的星云中诞生。
D. 整个宇宙从一团炙热的原始物质内诞生。
[多项选择]下列各项中，可以记入利润表“营业税金及附加”科目的有（）。
A. 增值税
B. 城市维护建设税
C. 教育费附加
D. 矿产资源补偿费
[单选题]下面的数值中，可能是二进制数的是____。
A.1011
B.120
C.58
D.11A
[单选题]客车空调控制电路中，制冷与电热为（ ）控制关系。
A.正连锁
B.反连锁
C.无连锁
D.不确定
[多选题]《国网基建部关于加强输变电工程分部结算管理的实施意见》规定，分部结算是指依据施工合同约定，结合工程（ ），在建设过程中对施工现场已完工的单项工程、单位工程或分部工程进行价款预结算的活动。
A.形象进度
B.施工转序
C.投资计划
D.施工组织方案
E.分部工程完成节点
[多项选择]救灾要加强自然灾害（）能力建设，包括救灾的装备物资、救灾专业人员和专业知识保障、提高受灾群众的生活保障能力等方面。
A. 恢复重建
B. 监测预警
C. 科学抗灾
D. 应急处置
[单项选择]正确角焊缝中，减小角焊缝的( )的夹角，可以减小应力集中。
A. 斜边与水平边
B. 水平面与截面
C. 垂直面与截面
D. 以上均不对
[单项选择]向施工封锁区间越出站界或跟踪出站调车，凭（）进入封锁区间。
A. 出站调车通知书
B. 值班员命令
C. 调度命令
[多选题] 关于普通混凝土小砌块施工说法,正确的是 ( )。
A. 在施工前先浇水湿透
B. 清除表面污物
C. 底面朝下正砌于墙上
D. 底面朝上反砌于墙上
E. 小砌块在适用时的龄期已到 28d
[判断题]侧倒倒地时,左(右)手快速放在腹部上,右(左)脚快速上前擦地滑伸,右(左)手在身体接触地面前一瞬间快速拍击地面缓冲。 ( )
A.正确
B.错误
[填空题]急性肾小球肾炎的主要临床表现是（）、水肿少尿、高血压。
[判断题]干粉灭火器报废年限为8年，维修期限未出厂期满5年和首次维修以后满两年，进行填报维修，每次送修数量不得超过该单元配置灭火器总数量的1/4。
A.正确
B.错误
[判断题]照明灯具的悬挂高度不应低于3m，并不得任意挪动，低于3m 时应设保护罩。照明灯具开关应控制相线。
A.正确
B.错误
[判断题]在训练过程中身上不得携带打火机、手机、钥匙、手表、笔、刀剪等坚硬物品。()
A.正确
B.错误
[单选题]作用在刚体上的力可以从一点平移到另一点,但必须附加( )。
A.一个力
B.一个力偶
C.一个反作用力
D.一个约束力
[判断题] 氨是一种具有可燃性但是没有毒性的气体。( )
A.正确
B.错误
[单选题]消化性溃疡患者应避免口服()
A.链霉素
B.庆大霉素
C.泼尼松
D.吗丁啉
E.甲氧氯普胺（胃复安）
[单项选择]下列（）法律法规不是保安押运公司员工需要重点掌握的。
A. 《中华人民共和国道路交通管理条例》
B. 《中华人民共和国枪支管理法》
C. 《专职守护押运人员枪支使用管理条例》
D. 《社会治安管理条例》
[单选题]线路两旁堆放货物，距钢轨头部外侧不得小于（ ）m。
A.0.5
B.1
C.1.5
D.2
[单项选择]邓小平关于怎样建设社会主义问题的论述的核心是( )。
A. 社会主义发展道路问题
B. 社会主义根本任务问题
C. 社会主义发展战略问题
D. 社会主义发展阶段问题
[不定项选择题]共用题干
Geology and Health
1. The importance of particular metals in the human diet has been realized within the past few decades,and the idea that geology might be related to health has been recognized for a number of elements such as iodine,zinc and selenium. For example,soils with low iodine contents produce crops,and animals deficient in iodine.A lack of iodine in the human diet leads to some serious diseases.
2.The ultimate source of metals within the human body is rocks,which weather into soil.gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth .The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemis-try and health of plants,animals and people.
3. So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems.Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled.However,small chil-dren are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.
4. Heavy metals are persistent:they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.
5.In contrast,naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures,despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.
6.There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body.Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.
Paragraph 1______
A.No evidence to indicate bad effects of naturally contaminated soil
B.Potential hazards of human contaminated soils
C.Research on channels of heavy metals getting into human food chain
D.Geology and health problems
E.Rocks-the ultimate source of soil pollution
F.Long-term health effects on children
[单选题]BF015更换的压力表的( )应与被更换的压力表一致。
A.表盘直径
B.类型
C.精度
D.量程
[单项选择]The diamond is considered the most famous and valuable jewel in the world. A diamond is a (31) of wealth.
Diamonds were made (32) great volcanic heat and pressure. A volcano is a mountain with a hole on the top. A volcano can be very dangerous because (33) it is active it sometimes (34) and causes great damage.
Diamonds were (35) towards the surface of the earth—millions of years ago by (36) great volcanic explosions. It is in the narrow volcanic pipes (37) diamonds are found, They are also found among the sand and stones of certain river (38) , and in a few places on the floor of the sea. For they were washed (39) the mountain sides by the rain.
Diamonds are very (40) . There are not many diamond pipes or diamond-producing rivers in the (41) . During the last century adventurers from Europe went to Brazil, because they had heard (42) there were diamonds in the River Amazon. Many of these
[单选题]A-D-F-002 4 2 2
普速铁路施工天窗:技改工程、线桥大中修及大型养路机械作业、接触网大修及改造时,不应少于( )分钟。
A.90
B.120
C.180
D.240
[单选题]双向闸片间隙自动调整器
A.双向闸片间隙自动调整器
B.单向闸片间隙自动调整器
C.闸片磨耗间隙调整器
D.闸片控制器
[填空题]灰铸钢（AT20—40）有优良的铸造性，良好的（）加工性，（）较强，所以它可以用来制作气缸体、飞轮、泵及阀等。
[单选题] 某客户办理业务时，态度蛮横，语言粗俗，并提出了很多不合理的要求，影响了正常
办公秩序。你认为应该（ ）。
A. 尽可能满足客户正当的需求
B. 交给领导处理
C. 冷处理，不理睬
D. 让保安人员将该客户请出去
[多选题]世界正处于大发展大变革大调整时期,和平与发展仍然是时代主题。____、____、____、____深入发展。
A.世界多极化
B.经济全球化
C.社会信息化
D.文化多样化
E.治理民主化
[简答题]Excel的自动筛选和高级筛选功能主要有哪些不同。
[单选题]打开沸腾炉操作门观察炉矿时,炉内应为()。
A.正压
B.负压
C.高压
[判断题]工务人员汛期遇到崩塌落石情况时，必须立即申请封锁线路。
A.正确
B.错误
[判断题]喷油器的针阀偶件经过选配研磨，只能成对使用，不能单件调换。（ ）
A.正确
B.错误
[判断题]纳洛酮可用于拮抗阿片受体激动-拮抗药引起的呼吸抑制。（ ）
[单项选择]（）应当在询价时向询价对象提供投资价值研究报告。
A. 主承销商
B. 发行人
C. 机构投资者
D. 公众投资者
