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[填空题]钢中的氮可使钢材产生(),降低钢的,且能引起钢的脆。

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[单选题]Retrofitting houses to use less energy should be a no-brainer for homeowners.(1)time,money spent on ways to reduce heat loss from draughty houses should produce a(2)return in lower fuel bills.In practice,many are cautious.Some improvements,such as solid-wall insulation and solar panels,can take over 25 years to(3)their initial cost.Few owners are willing to wait that long by then many are likely to have(4)and moved on Several governments have started finance schemes designed to(5)this problem.Since 2008 PaCE programmes have offered American homeowners loans to(6)improvements,repaid through higher local taxes on the property,(7)it belongs to.In Britain,the Green Deal offers loans over a 25-year period,with repayments added to energy bills.Countries including France and Canada have similar(8)In theory,these schemes should boost investment in common energy-saving measures,such as extra insulation and new boilers,(9)the first owner does not have to pay all the costs in advance But enrolment rates have(10),according to Sean Kidney at the Climate Bonds Initiative,a think tank.In Britain,just 1%of those assesseed for the Green Deal have signed up.In Berkeley,California,home of the first PACe scheme,the(11)rate is similarly low.Homeowners are(12)chiefly because the interest rates on the loans look high.The Green Deal charges 7%;some PaCe schemes a hefty 8%.As these rates are fixed for decades,they will(13)look unattractive when(as now)short-term interest rates are low Many people also(14)they will save enough on their energy bills to cover the repayments Fc or instance(15)in britain that installing loft insulation can cut energy bills by 20%have been dented by a government study that found it(16)gas consumption by only 1.7%on average.Others fear that green loans may reduce the value of their home.In America,firms that underwn mortgages are(17)PACE loans Green loans have not been a failure everywhere.Around 250,000 households in Germany(18)for them each year.They do so(19)they need pay only 1%interest on them each year thanks to an annual public subsidy of 1.5 billion.Whether that is a(an)(20)use of taxpayers’money is another question(11)选?
A.take-up
B.send-off
C.make-up
D.turn-off
[判断题]生产经营单位应当安排用于配备劳动防护用品、进行安全生产培训的经费。
A.正确
B.错误
[判断题]【判断题】未经许可,不应进入电缆沟、疏水沟、下水道、井下等密闭空间处工作。( )
A.正确
B.错误
[单选题]《处方药与非处方药流通管理暂行规定》规定,销售处方药和甲类非处方药的零售药店必须配备
A.药剂士
B.副主任药师
C.主管药师
D.主任药师
E.执业药师或药师以上药学技术人员
[多选题]符合下列()条件的,一般判断普速铁路牵引馈线为过负荷跳闸?
A. 电压20kV以上
B.动作电流值在馈线过流保护定值左右(过流保护动作时电流不小于保护整定值,阻抗保护动作时电流一般在过流保护整定值±100A左右)
C. 阻抗角在40度以内
D.供电臂内有电力机车或动车组运行
[判断题]非法关机不会造成相关的记录文件被破坏(___)
A.正确
B.错误
[简答题]要求列车停车的手信号夜间为( )红色灯光
[判断题]低压负荷开关又称开关熔断器组。( )
A.正确
B.错误
[填空题]供电单位每年编制本网保障电力系统安全的拉路序位表,报政府主管部门审批后执行。在电网出现有功功率不能满足需求、超稳定限额、电力系统故障、持续的频率或电压超下限和备用容量不足等情况时,可按()控制负荷。调控机构应对本网拉路序位负荷实时容量进行监控,并实现越限告警功能。
[填空题]An old friend from abroad, whom I was expecting to stay with me,{{U}} (36) {{/U}}from the airport to tell me that he had arrived. I was still at the office at the time, but I had made{{U}} (37) {{/U}}for his arrival. After explaining where my new flat was, I told him that I had left the key under a piece of stone near the door. As I was likely to be at home rather late, I advised him to go into the{{U}} (38) {{/U}}and help himself to food and drink. Two hours later, my friend telephoned me from the flat. At the moment, he said, he was listening to some of my{{U}} (39) {{/U}}after having just had a truly{{U}} (40) {{/U}}meal. He had found a pan on the gas{{U}} (41) {{/U}}and fried two eggs and had helped himself to some cold chicken from the{{U}} (42) {{/U}}. Now be said, he was drinking a glass of orange{{U}} (43) {{/U}} and he hoped I would join him.{{U}} (44) {{/U}}, he answered that he had not been able to find the key under the piece of stone, {{U}} (45) {{/U
[填空题]沼泽地开发治理措施包括()、()、()和()等四个方面。
[判断题]不停电的作业,指本身不需要停电且无偶然触及带电部分可能的作业。
A.正确
B.错误
[单项选择]造成空气污染的来源是多方面的,其中以下哪项不是扬尘污染的主要来源?()
A. 施工扬尘
B. 道路扬尘
C. 运输扬尘
D. 水产养殖
[单选题]()要对新技术、新设备、新材料、新工艺给施工安全带来的风险进行分析和评估,提出预防事故的措施和建议。
A.设计单位
B.建设单位
C.监理单位
D.施工单位
[单项选择]下列案件,根据当事人申请,不可以裁定先予执行的是( )。
A. 财产可能被毁灭
B. 追索医疗费用
C. 追索赡养费
D. 追索抚育费
[单选题]混凝土的(  )是指一定体积混凝土中固体物质填充的程度
A.A.密实度
B.B.孔隙率
C.C.含水率
D.D.坍落度
[单选题]CR400AF一级修车轮擦伤维修限度,当车轮直径≤900mm时:长度应≤(),深度应小于等于()。
A.30;0.5
B.30;0.25
C.25;0.5
D.25;0.25
[判断题]计算机系统及网络设备终端光驱、软驱应采用物理方式断开,但可使用外接USB设备。()
A.正确
B.错误
[单项选择]泡性结角膜炎的病因是()
A. 细菌
B. 病毒
C. 衣原体
D. 速发过敏反应
E. 迟发过敏反应
[单项选择]患儿,男,2岁,急诊入院。现高热、声音嘶哑、犬吠样咳嗽、吸气性喉鸣。询问病史发现有上呼吸道感染病史。首选的处理是()
A. 地塞米松雾化吸入
B. 口服退烧药
C. 输注抗生素
D. 口服化痰药
E. 必要时气管切开
[多项选择]采购业务的常见业务模式都有()
A. 普通采购业务
B. 代管采购业务
C. 固定资产采购业务
D. 直运采购业务
[多选题]通过()等方式隐瞒已经发生的金融市场交易的,未造成严重后果的,给予记过至降级处分;造成严重后果的,给予撤职至开除处分。
A.编造虚假交易入账
B.通过不入账
C.推迟入账
D.错误入账
[单选题]运维管理岗、质量管理岗、代维与应急管理岗原则上配置()人,可根据实际需要调整
A.1
B.2
C.3
D.4
[单项选择]对待师生关系上不应当强调()。
A. 服从
B. 尊重
C. 赞赏
D. 引导
[单选题]城镇综合建设项目选择标准原则上,项目整体经营性用地出地率不低于( ),土地出让前景良好,土地指标(新增建设用地、耕地占补平衡、土地出让指标)充足,土地出让收入扣除政府计提的基金、规费、政府收益等后可覆盖我方投资成本及收益。
A.30%
B.35%
C.25%
D.20%
[单项选择]男性,30岁,左上臂下段外伤、肱动脉裂伤,出血>1200ml。在急救现场左上臂已上止血带。转去某院后已查血型和静脉输入5%葡萄糖氯化钠溶液1000ml。测血压10.1/6.7kPa(76/50mmHg),脉搏110次/分。对该病人下一步首选治疗应是()。
A. 立刻手术修补肱动脉
B. 输血
C. 静脉滴注血管收缩剂
D. 静脉滴注多巴胺
E. 静脉滴注碳酸氢钠液
[单选题]51.许可申请材料存在可以当场更正的错误时,行政机关工作人员应当如何处理?
A.告知当事人不予受理
B.作出不予受理的决定
C.允许当事人当场更正
D.3日内一次性告知当事人
[单选题]新生儿产热主要依靠
A.棕色脂肪
B.白色脂肪
C.寒战产热
D.适宜的环境温度
E.基础代谢
[单选题]《建设工程监理规范》(GB/T503192013)规定,监理员是从事具体监理工作,具有( )的人员
A.工程师以上职称
B.中专及以上学历
C.经过监理业务培训
D.中专及以上学历并经过
[填空题]铝热焊焊缝距承轨台边缘不得小于()。
[填空题]循环水量减小,循环水温升____________ ,导致真空降低。
[多选题]起下钻时影响抽汲压力与激动压力大小的主要因素是( )。
A.起钻速度
B.环形空间的间隙
C.钻井液性能
D.钻具的几何尺寸
[单项选择]下述不属于数据库维护工作的是______。
A. 使用数据定义语言建立多个表,构建数据库总体框架
B. 根据备份计划周期性地备份数据库
C. 检测数据库的空间使用情况
D. 调整数据库参数,进行性能优化
[判断题].库内接触网状态的监控权归属检修调度室 。 ( )
A.正确
B.错误
[单项选择]
Artificial Intelligence

Any discussion of artificial intelligence, or A.I., must inevitably start with the question of what exactly intelligence is. Unfortunately, it is not an easy matter to decide. Intelligence is normally defined as the ability to recognize relationships and to build upon them. However, computers can often do that better than humans, yet they are not therefore considered more intelligent. Desires, goals, and preferences are also important, as is a sense of self- awareness, when we talk about what we mean by artificial intelligence. The scope and depth of a program’s coverage of all of these attributes determine which of the two main sorts of artificial intelligence it belongs to.
Weak A.I. is the main type of artificial intelligence that exists today. Weak A.I. programs do not attempt to mimic human consciousness or encapsulate the full range of human mental activity. Instead, they attempt to perform one particula
A. identify relationships.
B. conduct conversations.
C. lack desires.
D. spur programmers.
[单选题]火炬点火成功后,不需要进行检查的是( )。
A.火炬头温度传感器显示是否正常
B.火焰的颜色
C.长明灯燃料气压力
D.长明灯仪表风压力
[填空题]

Here are little cars that may some day take the place of today’s cars. If everyone drives such a car in the future, there will be less pollution in the air. There will also be more parking spaces in cities, and the streets will be less crowded. Three such Cars fit in the space now needed for one Car of the usual size. The little cars will cost much less to own and to drive. Driving will be safer, too, as these little cars can go only 55 miles per hour. The Cars of the future will be fine for getting around a city, but they will not be useful for long trips.

What’s the disadvantage for little cars
They will not be useful for()
[判断题]一段电路的电压Uab=-10V,该电压实际上是a点电位高于b点电位。
A.正确
B.错误
[多选题]依据南方电网公司《基建工程安全管理“五个严禁”》,严禁()、()和()承包工程和入网施工
A.皮包公司
B.挂靠
C.借用资质施工队伍
D.层层分包

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