题目详情
题目详情:

[多项选择]下列关于化学性危害来源及其重要性的说法,正确的包括()
A. 近年时间各国开始大量地开采自然资源
B. 无机化合物开始进入人类生产生活环境
C. 农兽药、化肥、生长促进剂等的污染
D. 最重要的化学危害为食品源头的污染

热门试题:

[单项选择]公司计划部和各分、子公司计划部是公司基建工程()招标采购工作的管理部门。
A. 可研设计
B. 勘察设计、施工、监理和咨询服务
C. 施工、监理和咨询服务
D. 物资、勘察设计、施工、监理和咨询服务
[多选题]以下属于高级醇的是( )。
A. 正丁醇
B. 丙醇
C. 异丁醇
D. 异戊醇
[单项选择]

女,13岁,周期性下腹痛半年,无月经来潮,考虑为处女膜闭锁

下列哪些临床表现与处女膜闭锁不符()
A. 处女膜外突呈紫蓝色
B. 大小便困难
C. 腹部包块
D. 直肠前包块
E. 不孕
[单选题]临柜业务手工登记簿记载错误的,应进行更改处理。将错误记载事项用红线划销,正确文字写在划销文字的上方,由()在右端加盖私人名章证明。
A. 运营主管
B. 经办人员
C.运营主管和经办人员
D.主任
[单项选择]胸骨左缘第2肋间搏动,见于()。
A. 肺气肿
B. 肺动脉高压
C. 腹主动脉瘤
D. 右心室肥大
[判断题]在无人售票的乘降所上车的人员,可在列车内购票,不收手续费。
A.正确
B.错误
[单项选择]作为投标文件组成部分的已标明价格并经承包人确认的称为()
A. 招标工程量清单
B. 已标价工程量清单
C. 招标文件
D. 投标文件
[单项选择]氨在血液中主要运输形式是()
A. 丙氨酸和谷氨酰胺
B. 谷氨酸和丙氨酸
C. 瓜氨酸和精氨酸
D. 半胱氨酸和瓜氨酸
E. 组氨酸和赖氨酸
[简答题]义务教育阶段美术课程的总目标是什么?
[单项选择]关于培养基描述错误的是()
A. 临床常用培养基多数为合成培养基
B. 是供微生物生长繁殖使用的混合营养物制品
C. 绝大多数细菌能在培养基上生长
D. 是病原菌分离鉴定必不可少的手段
E. 由人工方法配制而成
[单选题] 在门式脚手架的转角处或开口型脚手架端部,必须增设连墙件,连墙件的垂直间距不应大于建筑物的层高。且不应大于( )。
A.4.Om
B.5.Om
C.6.Om
D.8.Om
[单项选择]关于DNA的二级结构(双螺旋结构),正确的是
A. 两条同向的多核苷酸链
B. 两条反向的多核苷酸链
C. 腺嘌呤和鸟嘌呤配对
D. 碱基之间以共价键连接
E. 磷酸骨干在双螺旋之中
[单选题]25T型客车检修规程规定,用500V级兆欧表测量AC220V电热管其绝缘电阻值为( )。
A.冷态≥20MΩ
B.冷态≥100MΩ
C.冷态>/200MΩ
D.冷态≥400MΩ
[不定项选择题]Directions: The following paragraphs are given in a wrong order. For Questions 41-45, you are required to reorganize these paragraphs into a coherent article by choosing from the list A-G and filling them into the numbered boxes. Paragraphs C and F have been correctly placed. Mark your answers on ANSWER SHEET. (10 points) A. In December of 1869, Congress appointed a commission to select a site and prepare plans and cost estimates for a new State Department Building. The commission was also to consider possible arrangements for the War and Navy Departments. To the horror of some who expected a Greek Revival twin of the Treasury Building to be erected on the other side of the White House, the elaborate French Second Empire style design by Alfred Mullett was selected, and construction of a building to house all three departments began in June of 1871. B. Completed in 1875, the State Department’s south wing was the first to be occupied, with its elegant four-story library (completed in 1876), Diplomatic Reception Room, and Secretary’s office decorated with carved wood, Oriental rugs, and stenciled wall patterns. The Navy Department moved into the east wing in 1879, where elaborate wall and ceiling stenciling and marquetry floors decorated the office of the Secretary. C. The State, War, and Navy Building, as it was originally known, housed the three Executive Branch Departments most intimately associated with formulating and conducting the nation’s foreign policy in the last quarter of the nineteenth century and the first quarter of the twentieth century-the period when the United States emerged as an international power. The building has housed some of the nation’s most significant diplomats and politicians and has been the scene of many historic events. D. Many of the most celebrated national figures have participated in historical events that have taken place within the EEOB’s granite walls. Theodore and Franklin D. Roosevelt, William Howard Taft, Dwight D. Eisenhower, Lyndon B. Johnson, Gerald Ford, and George
A.W. Bush all had offices in this building before becoming president. It has housed 16 Secretaries of the Navy, 21 Secretaries of War, and 24 Secretaries of State. Winston Churchill once walked its corridors and Japanese emissaries met here with Secretary of State Cordell Hull after the bombing of Pearl Harbor.
B.The Eisenhower Executive Office Building (EEO
C.commands a unique position in both the national history and the architectural heritage of the United States. Designed by Supervising Architect of the Treasury, Alfred
D.Mullett, it was built from 1871 to 1888 to house the growing staffs of the State, War, and Navy Departments, and is considered one of the best examples of French Second Empire architecture in the country.
E.Construction took 17 years as the building slowly rose wing by wing. When the EEOB was finished, it was the largest office building in Washington, with nearly 2 miles of black and white tiled corridors. Almost all of the interior detail is of cast iron or plaster; the use of wood was minimized to insure fire safety. Eight monumental curving staircases of granite with over 4,000 individually cast bronze balusters are capped by four skylight domes and two stained glass rotundas.
F.The history of the EEOB began long before its foundations were laid. The first executive offices were constructed between 1799 and 1820. A series of fires (including those set by the British in 1814) and overcrowded conditions led to the construction of the existing Treasury Building. In 1866, the construction of the North Wing of the Treasury Building necessitated the demolition of the State Department building.
G.  41. _____ →→42. _____ →43. _____ →F→44. _____ →45. _____
[单选题]造成( )人以上死亡的事故为特别重大事故。
A.10
B.20
C.30
D.40
[单项选择]下列哪项不是甲亢术后呼吸困难和窒息的原因
A. 双侧喉上神经损伤
B. 双侧喉返神经损伤
C. 切口内出血
D. 喉头水肿
E. 气管塌陷
[单项选择]主油箱主要是用来()系统用油。
A. 稀释
B. 还原
C. 储存
D. 氧化
[单项选择]既能滋补肝肾,又有养肝明目的药物是
A. 车前子
B. 莲子
C. 麦门冬
D. 枸杞子
E. 决明子
[多选题]下述( )是工作许可人在工作票制度执行中所负有的相关安全责任。
A.审查工作票所列安全措施是否正确完备,是否符合现场实际
B.正确完成工作票所列的安全措施
C.工作前向工作负责人交代所做的安全措施
D.正确发出许可开始工作的命令。
[单选题]某企业2012年的税前利润为3600万元,利息费用为720万元,则该年度企业的利息保障倍数为:
A.1
B.4
C.5
D.6
[单选题]实现生产工艺和机械设备等生产条件本质安全的措施主要是指( )。
A.安全技术措施
B.个体防护措施
C.安全教育措施
D.安全检查措施
[多选题]在实地看房过程中,房地产经纪人为防止跳单应采取的措施有(  )。
A.避免双方同时离开
B.要及时制止双方交换联系方式
C.尽量避免双方单独在一起进行交谈
D.尽量避免客户使用业主的手机或房屋电话
E.尽量在现场与双方洽商价钱
[单项选择]SQL语言是一种 (96) 语言,其主要功能有 (97) ,它的典型句型为;
SELECT A1,A2,...An
FROM R1,R2,...Rm
WHERE F
其中Ai(i=1,2,…,n)、Rj(j=1,2,…,m)和F分别是 (98)
关系模式学生成绩表(S#,C#,Score)中S#是学生的学号,C#是课程号,Score是学号为S#学生的C#号课程的成绩。若要查询每门课程的平均成绩,且要求查询结果按平均成绩升序排列,平均成绩相同时,按课程号降序排列,可用SQL,语言写为 (99) 。若查询的结果仅限于平均分数超过85分的,则应 (100)

A. 在From子句的下一行加入:WHEREAVG(*)>85
B. 在From子句的下一行加入:WHEREAVC(Score)>85
C. 在Group子句的上一行加入:HAVINCAVG(Score)>85
D. 在Group子句的下一行加入:HAVICAVG(Score)>85
[单项选择]1,3/8,1/5,1/8,3/35,( )。
A. 1/12
B. 1/16
C. 1/18
D. 1/24
[判断题]每股护轨接头安装4个螺栓,每端安装2个,螺帽应安装在线路中心一侧。
A.正确
B.错误
[多选题]当代资本主义的新变化
A. 从根本上说是人类社会发展一般规律作用的结果
B. 是在资本主义制度基本框架内的变化
C. 并不意味着资本主义生产关系的根本性质发生了变化
D. 意味着资本主义生产关系的根本性质发生了变化
[单项选择]脘腹痞闷,食少难消,大便溏薄,倦怠乏力,苔腻微黄,脉虚弱者,治宜选用()
A. 越鞠丸
B. 健脾丸
C. 半夏泻心汤
D. 参苓白术散
E. 厚朴温中汤
[单选题]绝缘隔板和绝缘罩只允许在( )kV及以下电压的电气设备上使用,并应有足够的绝缘和机械强度。
A. 10
B. 20
C. 35
D. 110
[单选题]下列结构不属于H 1受体拮抗剂的是( )
A.氨基醚类
B.乙二胺类
C.丙胺类
D.氨基酮类
E.哌嗪类
[简答题]调车指挥人编号为( ),连结员由“1号开始顺序编号。
[判断题]特种设备安全监督管理部门应当制定特种设备应急预案。特种设备使用单位应当制定事故应急专项预案,并定期进行事故应急演练。
A.正确
B.错误
[判断题]两点的高程差,用绝对高程计算和用假定高程计算,其结果是不等的。( )
A.正确
B.错误
[多选题]计量二次回路接线相关试验时,试验人员应()。
A.充分了解被试设备和所用试验设备、仪器的性能
B.具有试验专业知识
C.明确危险点辨识及预控措施
D.清楚试验危险点
[简答题]三显示自动闭塞、半自动闭塞、自动站间闭塞区段,进站色灯信号机显示两个黄色灯光信号时表示什么含义?
[判断题]CRH5G型动车组运行途中空气弹簧泄露限速120km/h
A.正确
B.错误
[简答题]在离接触网带电部分不到( )m的建筑物上作业时,必须按规定办理接触网停电申请手续,得到许可停电施工命令,并有接触网工区派人安设临时接地线后,方能施工。
[判断题]会计主管短期离岗时,可以通过权限预交接、权限交接或柜员交接将其权限进行移交;并将其经管的业务印章、登记簿等其他工作事项进行当面移交。接收权限和其他工作事项的柜员必须为同一人。
A.正确
B.错误
[单项选择]《中华人民共和国义务教育法》第5条规定:凡年满周岁的儿童,不分性别、民族、种族,应当入学接受规定的义务教育。条件不具备的地区,可以推迟到周岁入学。()
A. 5周岁、6周岁
B. 6周岁、7周岁
C. 7周岁、8周岁
D. 8、周岁、9周岁
[单项选择]埃博拉出血热是一种严重且往往致命的疾病,病死率最高,可达()。
A. ﹤50%℅
B. ﹥90%℅
C. 50℅~90%℅

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