热门试题:
[单选题]直埋电缆的优点之一是( )。
A. 散热条件好
B. 易于抢修
C. 不易通风
[判断题]违法行为有连续或者继续状态的,行政处罚时效从行为终了之日起计算。
[多选题] 加强市场监测。要加强( ),( ),( ),出现异常情况,( ),确保新机制平稳运行。
A. 成品油市场动态和价格监测
B. 密切跟踪新机制运行情况
C. 积极协调解决机制运行中的矛盾和问题
D. 及时报告并配合有关部门采取应对措施
[单项选择]土地出让是指( )的出让。
A. 土地所有权
B. 土地所有权和使用权
C. 土地使用权
D. 有期限的土地所有权和无期限的土地使用权
[单项选择]肿瘤无回声暗区内见多条短线状强回声,平行排列,浮于其中,可随体位移动,此种声像图是()
A. 面团征
B. 壁立结节征
C. 瀑布征
D. 脂液分层征
E. 线条征
[多选题]多选题:本次事故暴露的问题有( )。
A.工作负责人未正确履行安全职责,擅自参加作业,在没有验电安装接地线,无人监护情况去下拆除变压器的高压端子
B.巡视发现疑似故障点,未取得工作许可的电话或口头命令时擅自作业
C.作业现场安全管理不到位,未采取有效的危险点控制措施。
D.工作班成员未做到“安全生产四不伤害”,未能及时制止现场违章行为。
[简答题]碎屑颗粒直径的大小称为粒度,在正常的碎屑岩中,通常粒度分为砾、砂、粉砂、粘土四级。
[判断题]同塔多回线路可以是同一电压等级,也可以是不同电压等级。
A.正确
B.错误
[判断题]嵌顿性疝内容物仅为部分肠壁称为Richtre疝。( )
A.正确
B.错误
[单选题]Text3 Genetically engineered crops are safe for humans and animals to eat and have not caused increases in cancer,obesity,gastrointestinal illnesses,kidney disease,autism or allergies,an exhaustive report from the National Academies of Science released Tuesday found.Overall,genetically engineered(G
E)crops saved farmers in the United States money but didn't appear to increase crop yields.They have lowered pest populations in some areas,especially in the Midwest but increased the number of herbicide-resistant weeds in others.There's also no evidence that GE crops have affected the population of monarch butterflies,the report said.To gauge whether foods made from genetically modified crops were safe for human consumption,the committee compared disease reports from the United States and Canada,where such crops have been consumed since the mid-1990s,and those in the United Kingdom and westem Europe,where they are not widely eaten.No long-term pattem ofincrease in specific health problems after the introduction of GE foods in the 1990s in the United States and Canada was found.There was no correlation between obesity or Type n diabetes and the consumption of GE foods.Celiac disease,which makes humans intolerant of gluten,increased in both populations.Patterns in the increase in autism spectrum disorder in children were similar in both the United Kingdom and the United States,the committee reported.Overall the report concluded that there were no differences in terms ofa higher risk to human health between foods made from GE crops and those made from conventionally-bred crops.Food&Water Watch,a government accountability group in Washington
D.
C.,said the committee's ties to the biotech industry and other corporations create conflicts ofinterest and raise questions about the independence ofits work."Critics have long been marginalized,"said Wenonah Hauter,the group's executive director.A significant portion of American consumers are concerned about the safety or other effects of foods made with genetically modified crops,often called GMOs for genetically modified orgarusms.A survey released last year by the NPD Group,a market research firm,found that 57%ofAmericans were concemed that genetically modified foods posed a health hazard.The food industry has taken notice.In 2015,Progressive Grocer,a trade publication,reported that total U.S.sales of food and beverage products labeled"non-GMO"reached$10 billion during 2014.The National Academies report will likely not sway these consumers,said Phil Lempert,a Los Angeles-based food industry analyst."It's an emotional issue,it's not a science issue,"he said.31.What the report from the National Academies of Science finds is got by
A.comparing the disease reports from consumers and non-consumers of GE foods.
B.estimating the correlation between obesity and the consumption ofGE foods.
C.differentiating GE crops from conventionally-bred crops.
D.doing a market research ofhealth hazards.
[单项选择]______ is known to the world, Beethoven is a great musician.
A. That
B. Which
C. As
D. It
[单选题]某商业综合楼,共设有三个消防控制室,并将设置在办公区的消防控制室作为主消防控制室,其他作为分消防控制室。下列关于各分消防控制室内的消防设备之间的关系的说法,正确的是( )
A.不可以互相传输、显示状态信息,不应互相控制
B.不可以互相传输、显示状态信息,但应互相控制
C.可以互相传输并显示状态信息,也应互相控制
D.可以互相传输并显示状态信息,但不应互相控制
[单选题]3月1日办理了一笔商业汇票贴现,金额为100000元,利率为6%,9月1日到期,当月确认的收入为:
A.500元
B.3000元
C.600元
D.6000元
[单选题]位置公差中“∠”表示()。
A.垂直度
B.倾斜度
C.平行度
D.圆度
[单项选择]腻子盘可用()低碳钢板制成。
A. 0.5~1
B. 1~1.5
C. 1.5~2
D. 2~2.5
[单项选择]当一台计算机发送E-mail信息给另外一台计算机时,下列的()过程正确描述了数据打包的5个转换步骤?
A. 数据,数据段,数据包,数据帧,比特
B. 比特,数据帧,数据包,数据段,数据
C. 数据包,数据段,数据,比特,数据帧
D. 数据段,数据包,数据帧,比特,数据
[单选题]当采煤机滚筒的磨损量超过原厚度的()时,视为滚筒不完好。
A.1/4
B.1/5
C.1/3
[单项选择]尿细菌培养为粪肠球菌,具有诊断意义的菌落计数至少大于:()
A. 10/ml
B. 100/ml
C. 1000/ml
D. 10000/ml
E. 100000/ml
[判断题]对于固定敷设的电力电缆,其连接点的抗拉强度要求不低于导体本身抗拉强度的60%。
A.正确
B.错误
[单选题]分部运行前,司机须使列车保持制动保压状态,采取好防溜措施后(拧紧两端车辆的人力制动机,当区间停留线路的坡度( )时,还应在下坡方向端放置防溜铁鞋),方准提开车钩。
A.超过1‰
B.超过2‰
C.超过2.5‰
[填空题]确定视距就可按视高的倍数来计算,设视高为h,则视距为()。
[填空题]从信息传播的角度看,演讲活动从演讲者萌发()开始至演讲产生()为止,是一个信息活动的完整过程。
[多选题]下列车厢中有200L水箱的有哪些?( )
A.1车
B.2车
C.7车
D.8车
[判断题]申请政府信息公开,既是新一代人群的政治觉醒,同时也是源于对政府已公开信息的信任。
[多项选择]我们所要建设的社会主义和谐社会,应该是(或其基本特征是)
A. 民主法治、公平正义
B. 诚信友爱、充满活力
C. 安定有序、人与自然和谐相处
D. 独立自主、自力更生
[单选题]要坚持( ),加快安全生产相关法律法规制订修订,加强安全生产监管执法,强化基层监管力量,着力提高安全生产法治化水平。
A. 依法治理
B. 依规治理
C. 按章办事
D. 依法治企
[单选题]电缆试验结束,应对被试电缆进行充分放电,并在被试电缆上加装临时接地线,待( )方可拆除。
A.投入运行后
B.工作票终结前
C.电缆终端引出线接通后
D.带负荷后
[判断题]液压传动系统适宜在传动比要求严格的场合采用 。
A.正确
B.错误
[单项选择]直立的竹竿在正午时影子最长的那一天是北半球的( )。
A. 冬至
B. 夏至
C. 春分
D. 秋分
[单选题]以下各项中,不属于增值税特点的是( )。
A.实行价内税制度
B.税收负担由最终消费者承担
C.保持税收中性
D.普遍征收
[判断题]表示设备断开和允许进入间隔的信号、经常接入的电压表等,如果指示有电,在排除异常情况前,禁止在设备上工作。()
A.正确
B.错误
[单选题]_。历史证明,哪怕是最有效率的万能政府,实际上也不可能全面介入管理每一个家庭或者宗族的具体生活,正如大脑不能指挥身上的每一个细胞的具体活动一样。
填入上面横线的句子,与上下文衔接最恰当的一项是()。
A.家庭是国家和社会的细胞
B.人类历史的发展和家庭是分不开的
C.家和万事兴
D.正是一个个不起眼的家庭组成了大社会
[单选题]( )如同我们身份证上的身份证号码,具有全球唯一性。
A.IP地址
B.Mac地址
C.网关
D.子网掩码
[多选题]站用电380V双母线正常运行方式有( ).
A.分段运行
B.并列运行
C.空载运行
D.接地运行
[判断题]视觉信号中注意或减低速度的信号为绿色。( )
A.正确
B.错误
[单选题]将两种溶液混合后产生白色沉淀,加入稀硝酸沉淀消失并有气体逸出,再加入AgN03溶液,又有白色沉淀出现。这两种溶液是()。
A.A.CaCl2+Na2C03
B.B.Na2CO3+NH4Cl
C.C.Na2S04+Ba(N03)2
D.D.K3P04+CaCl2