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题目详情:

[单项选择]关于双端固定桥稳定性的描述,错误的是()
A. 两端基牙中点的连线为支点线
B. 前牙双端固定桥的桥体不在支点线上时,固定桥容易产生杠杆作用
C. 当在前牙双端固定桥的桥体前方中份加载时,支点线为两个基牙颈部的连线
D. 前牙固定桥缺失牙较多和牙弓突度较大时,桥体上的力点距支点线越远,即弦高越大,杠杆作用力越大
E. 前牙固定桥缺失牙较多和牙弓突度较大时,可在支点线的远中侧增加基牙,将直线型支点线改为平面型支点线

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[单选题]( )是国民经济发展、科学技术飞跃的主要动力。
A.A:电能。
B.B:化石能源。
C.C:太阳能。
D.D:核能。
E.略
F.略
[简答题]简述闪点和燃点之间的区别和关系?
[单项选择]患者,男性,22岁,患类风湿性关节炎,血红蛋白85g/L,血清铁50ug/dl,骨髓外铁(++~++++)。主要处理()
A. 注射维生素B12
B. 铁剂
C. 注射丙酸睾丸酮
D. 输血
E. 治疗原发病
[单选题]风险评级为三级和四级的理财产品,单一客户销售起点金额不得低于()万元。
A.A.30
B.B.20
C.C.10
D.D.5
[单选题]在单元格输入下列哪个值,该单元格显示0.3?
A.结果判断
B.43271
C.=6/20
D.6/20
E."6/20"
[单选题](1.0分)下列文件涉及单位需保管的是( )。
A.A、设计变更记录
B.B、桩基施工记录
C.C、地基处理记录
D.D、技术交底
[判断题]清拭运转中机器的固定部分时,可以把抹布缠在手上或手指上使用。
A.正确
B.错误
[单项选择]下列有关体表感染的描述,错误的是
A. 急性蜂窝织炎是皮下结缔组织的感染
B. 痈是多数散在的、不相关联的疖病
C. 丹毒是皮内网状淋巴管的炎性病变
D. 疖是毛囊与邻近皮脂腺的化脓性感染
E. 脓肿是急性感染后的局限性脓液积聚
[判断题]不同建制的单位同驻一个营区时,作息时间表轮流由单位定( )
A.正确
B.错误
[单项选择]下列哪个国家是世界上最大的硅太阳能板生产国()
A. 美国
B. 德国
C. 中国
D. 西班牙
[单项选择]轨道回流线必须符合《规程》要求,在采区车场不回流轨道上装设不少于()的二级绝缘。
A. 一列车长度
B. 两列车长度
C. 三列车长度
D. 四列车长度
[单选题]现场检查计量柜等带电设备时,应正确穿戴齐全且合格的劳动防护用品,检查高压带电设备时,不得强行打开()。
A. A.柜门
B.B.控制箱
C.C.闭锁装置
D.D.外壳
[单选题]在Windows命令行窗口中,运行NSLOOKUP命令通常用以( )。
A.查看当前TCP/IP 配置信息
B.测试到达目的主机的连通性
C.显示当前所有连接及状态信息
D.查看当前使用的DNS 服务器
[单选题]防雷装置包括( )引下线、接地装置三部分。
A.接零线
B.避雷器
C.接闪器
[单选题]应急响应行动结束后( )日内,有关站段对水害应急处置过程进行总结、分析、评估,并报局防洪办。
A.1
B.2
C.3
D.5
[单选题]患者男,55 岁,头痛 3 个月,多见于清晨,常出现癫痫发作,经检查为颅
内占位,颅压升高。首选的确诊方式为( )
A.脑血管造影
B.头部CT 或 MRI
C.脑超声
D.腰穿
E.胸部CT
[简答题]货物列车中编挂关门车时,编挂位置有何限制? J262
[简答题]简述计算机犯罪的特点?
[不定项选择题]某企业采用单对象流水线进行生产组织。该流水线日产品产量为101件,每日工作8小时,时间有效利用系数为0.95,废品率为0。经测算,流水线的第i道工序需要某精密设备6台,实际只有5台该设备进行生产。 该企业所应用的生产过程空间组织形式是( )。
A.固定布置
B.工艺专业化布置
C.对象专业化布置
D.混合式布置
[单选题]站务人员操作故障门LCB到“关门”位,关闭该故障门,无效时,应( )
A.打“开门”位
B.保持现状
C.打“自动”位
D.打“隔离”位
[单选题] 在超过( )深的基坑内作业时,向坑外抛掷土石应防止土石回落坑内,并做好防止土层塌方的临边防护措施。
A. 1m
B. 1.5m
C. 2m
D. 2.5m
[多选题]属于公安机关职责范围但不属于本单位管辖的案件,具有( )情形之一的,受理案件或者发现案件的公安机关及其人民警察应当依法先行采取必要的强制措施或者其他处置措施,再移送有管辖权的单位处理。
A.违法嫌疑人正在实施危害行为的
B.违法嫌疑人正在逃跑的
C.违法嫌疑人已被发现的
D.国家.集体或者公民利益正在遭受一般损害的
[单选题]关于使用抗生素的错误观念是:
A.感冒发热就要用抗生素
B.尽量避免在皮肤、黏膜等局部使用抗生素
C.不能为了病好得快擅自加大抗生素剂
D.能用普通抗生素就不要用高级的抗生素
[单选题]根据《国家电网公司分布式电源并网服务管理规则》(国家电网企管〔2014〕1082号),地市公司营销部(客户服务中心)负责将相关申请资料存档,并送地市公司(____)。地市公司发展部通知地市公司经研所(直辖市公司为经研院)制订接入系统方案。
A.运检部
B.发展部
C.供电服务指挥中心
D.调控中心
[判断题]吸水管的任何部分都不能高于水泵的进水口
A.正确
B.错误
[单选题]1号线正线采用计轴系统检查轨道占用,段场采用轨道电路检查轨道占用。
A.正确
B.错误
[单项选择]网络系统分层设计中层次之间的上联带宽与下一级带宽之比一般控制在()。
A. 1:1
B. 1:10
C. 1:20
D. 1:40
[单项选择]下列指标中,与预测市场同时,同向指标是( )。
A. 汇率
B. 货币供给额年增长率
C. 中长期贷款利率
D. 空置率
[判断题]管道安装后,进行水压试验,试验压力不应小于0.4MPa。( )
A.正确
B.错误
[单项选择]Intellectual property rights(IPR) are the rights given to persons over the creations of their minds. They usually give the creator an exclusive right over the use of his/her creation for a certain period of time. Intellectual property rights are customarily divided into two main areas: (i)Copyright and rights related to copyright. The rights of authors of literary and artistic works (such as books and other writings, musical compositions, paintings, sculpture, computer programs and films) are protected by copyright, for a minimum period of 50 years after the death of the author. Also protected through copyright and related (sometimes referred to as "neighboring") rights are the rights of performers (e.g. actors, singers and musicians), producers of phonograms (sound recordings) and broadcasting organizations. The main social purpose of protection of copyright and related rights is to encourage and reward creative work. (ii)Industrial property. Industrial property can u
A. Inventions are protected by patents for typically 20 years.
B. The protection of industrial property cannot last indefinitely.
C. The intellectual property rights under protection are also subject to limitations and exceptions.
D. There should be a balance between the legitimate interests of IPR holders and those of users.
[单选题]不属于泌尿系统的器官是
A.输尿管
B.膀胱
C.尿道
D.肾
E.阴道
[单选题]工程进度计划执行信息的主要来源是( )。
A.进度计划执行情况的跟踪检查
B.监理工程师的工作指令
C.项目经理的施工命令
D.实际进度的数据与计划进度的数据进行比较
[单选题]根据《建设工程安全生产管理条例》,施工单位对列入( )的安全作业环境及安全施工措施所需费用,应当用于施工安全防护用具及设施的采购和更新、安全施工措施的落实、安全生产条件的改善,不得挪作他用。
A.建设工程预算
B.建设工程概算
C.建设工程概预算
D.建设工程结算
[单选题]CRH5型动车组地板由( )制成。( )
A.玻璃纤维
B.木材
C.塑胶
D.泡沫芯材
[不定项选择题]共用题干 “Liquefaction” Key to Much of Japanese Earthquake Damage
The massive subduction zone earthquake in Japan caused a significant level of soil“liquefaction” that has surprised researchers with its1severity,a new analysis shows.
“We've seen localized examples of soil liquefaction as extreme as this before,but the distance and2of damage in Japan were unusually severe,”said Scott Ashford,a professor of geotechnical engineering at Oregon State University.“Entire structures were tilted and sinking into the sediments,”Ashford said.“The shifts in soil destroyed water,drain and gas pipelines,crippling the utilities and infrastructure these communities need to3. We saw some places that sank as much as four feet.”
Some degree of soil liquefaction is common in almost any major earthquake. It's a phenomenon in which soils soaked with water,particularly recent sediments or sand,can lose much of their4and flow during an earthquake. This can allow structures to shift or sink or5.
But most earthquakes are much6than the recent event in Japan,Ashford said. The length of the Japanese earthquake,as much as five minutes,may force researchers to recon-sider the extent of liquefaction damage possibly occurring in situations such as this.
“With such a long-lasting earthquake,we saw7structures that might have been okay after 30 seconds just continued to sink and tilt as the shaking continued for several more minutes,”he said.“And it was clear that younger sediments,and especially areas built on8filled ground,are much more vulnerable.”
The data provided by analyzing the Japanese earthquake,researchers said,should make it possible to improve the understanding of this soil9and better prepare for it in the future.Ashford said it was critical for the team to collect the information quickly,10damage was removed in the recovery efforts.
“There's no doubt that we'll learn things from what happened in Japan that will help us to reduce risks in other similar11,”Ashford said.“Future construction in some places may make more use of techniques known to reduce liquefaction,such as better compaction to make soils dense,or use of reinforcing stone columns.”
Ashford pointed out that northern California have younger soils vulnerable to liquefac-tion一on the coast,near river deposits or in areas with filled ground. The“young”sedi-ments,in geologic terms,may be those12within the past 10,000 years or more. In Ore-gon,for instance,that describes much of downtown Portland,the Portland International Airport and other cities.
Anything13a river and old flood plains is a suspect,and the Oregon Department of Transportation has already concluded that 1,100 bridges in the state are at risk from an earthquake.
Fewer than 15 percent of them have been reinforced to14collapse. Japan has suffered tremendous losses in the March 11 earthquake,but Japanese construction15 helped prevent many buildings from collapse一even as they tilted and sank into the ground. 7._________
A.when
B.what
C.how
D.which

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