热门试题:
[判断题]在利用痕迹物证证明过程中,必须利用多种痕迹物证及其他火灾证据共同证明一个问题,才能保证证明结果的可靠性。
A.正确
B.错误
[单项选择]不属于市场调查内容的是( )。
A. 市场容量调查
B. 价格状况调查
C. 竞争力状况调查
D. 可行方案调查
[单项选择]建筑物、构筑物的基础出现严重不均匀沉降,建筑物倾斜超标、主体结构强度不足属于()。
A. 一般质量事故
B. 重大质量事故
C. 特大质量事故
D. 质量缺陷
[简答题]在电视剧《情深深雨蒙蒙》中如萍的母亲在剧中叫什么?
[单选题]35kV真空断路器交流耐压试验耐压时间为(____)。
A. 30s
B. 60s
C. 2min
D. 5min
[判断题]过氧化钠(Na2O2的组成是由2个钠元素和2个氧元素组成。
A.正确
B.错误
[单选题]外汇交易人在买入一种交割期限外汇的同时,卖出另一种交割期限的同时外汇的外汇交易称为外汇( )。
A.套利交易
B.择期交易
C.掉期交易
D.套汇交易
[单项选择]()塑料管用于工作压力小于O.6MPa的管路;D塑料管用于工作压力小于1.0MPa的管路。
A. 重型
B. 轻型
C. 较重型
D. 重型、较重型
[单项选择]关于急性心肌梗死并发症,下列哪项恰当
A. 心脏破裂多见于室间隔穿孔破裂
B. 乳头肌断裂多见于二尖瓣前乳头肌
C. 心室壁瘤发生于心梗后3个月
D. 急性心梗早期即可伴发肺梗死
E. 心梗后综合征发生率为1%~2%
[多选题] MCS-51 单片机引脚有哪些第二功能()。
A.定时器 /计数器的外部输入
B.串行输入口
C.串行输出口
D.外部中断口
E.内部数据存储器
[单选题]对非法持有属于国家秘密的文件、资料和其他物品的,国家安全机关可以依法对其人身、物品、住处和其他有关的地方进行( )。
A.监察
B.搜查
C.检查
D.检察
[单选题]《中国铁路北京局集团有限公司消防安全管理办法》规定:手提式、推车式灭火器维修检测周期在国家标准及行业标准:干粉灭火器、二氧化碳灭火器、水基型灭火器每( )个月检测一次。
A.6
B.12
C.18
D.24
[多项选择]按我国会计准则规定,下列业务中,可以确认为收入的有( )。
A. 销售出去的电梯(电梯尚未安装)
B. 收取手续费方式下,委托方收到代销清单的商品销售
C. 售后租回形成经营租赁,且销售商品交易是按公允价值达成的
D. 采用以旧换新方式销售的商品
E. 退货期未满的试销商品的销售
[单选题]作业人员工作中正常活动范围与10kV高压线路、设备带电部分的安全距离为()米
A.0.35
B.0.6
C.0.7
D.1.0
E.略
F.略
[单项选择]专业技术人员主要使用的信息系统是()
A. 经理信息系统
B. 专家系统和知识工作系统
C. 管理信息系统
D. 事务和数据处理系统
[单选题]《测绘法》规定确实无法避开的,需要拆迁永久性测量标志或者使永久性测量标志失去效能的,应当经()批准。
A.测量标志建设部门
B.测量标志管理部门
C.测量标志所在地市级测绘行政主管部门
D.省级以上测绘行政主管部门
[单项选择]次生骨质腭出现的作用是()。
A. 使眼球不能下陷
B. 使口腔变小
C. 使内鼻孔前移
D. 使内鼻孔后移,使口腔和鼻腔分开
[单项选择]外观呈磨玻璃样,白细胞数中等度升高[(50~500)×10/L],以淋巴细胞升高为主,蛋白质明显升高,糖和氯化物减少()
A. 流行性乙型脑炎
B. 流行性脑脊髓膜炎
C. 病毒性脑膜炎
D. 结核性脑膜炎
E. 以上都不是
[单项选择]麻醉前禁食禁水的主要目的是()
A. 预防术中呕吐物误吸
B. 防止术中排便
C. 防止术后腹胀
D. 利于术后胃肠功能恢复
E. 防止术后尿潴留
[单选题]隔离开关是指在分位置时,触头间有符合规定要求的绝缘距离和( ) ;在合位置时,能承载正常回路条件下的电流及在规定时间内异常条件(包括短路)下的电流的开关设备。
A.明显的断开标志
B.断开标志
C.明显的断开点
D.断开点
[不定项选择题]A.观察,局部不作处理
A.局部按摩
B.舌系带延长术
C.牙槽突修整术
D.上颌结节修整术
E.患者拔牙后3个月局部愈合尚可,但有一骨楞压痛明显,此时应
[单选题]中性点直接接地系统,如电气设备发生一相碰壳,人体接触电气设备,相当于发生( )。
A.单相触电
B. 灼伤
C. 两相触电
[多选题]ATS故障时,以下说法正确的是( )。
A.影响现场的安全和非安全逻辑
B.不会影响现场的安全和非安全逻辑
C.不会影响通过现场控制盘进行轨道控制
D.影响通过现场控制盘进行轨道控制
[判断题]碳弧气刨的电弧过长,操作不稳定,甚至息弧。碳弧气刨电弧的长度一般在3~5mm为宜。
A.正确
B.错误
[单项选择]治疗胃痛脾胃虚寒证,应首选()
A. 小建中汤
B. 理中丸
C. 附子理中丸
D. 良附丸
E. 黄芪建中汤
[判断题]行政执法机关及其行政执法人员依法行使职权的活动受法律保护,任何
单位和个人不得拒绝、阻碍和干预
A.正确
B.错误
[判断题] 建设单位在编制工程概算时,不必确定建设工程安全作业环境及安全施工措施所需费用。
( )
A.正确
B.错误
[单选题]制动系由制动器和制动传动装置组成,其作用是迅速( )汽车行驶( ),直至停车。
A.降低、速度
B.提高、距离
C.提升、转速
D.降低、里程
[单项选择]介入治疗的手术入路不包括()
A. 经皮超声引导下治疗
B. 彩色多普勒引导下经血管治疗肿瘤
C. 腹腔镜引导下射频消融术
D. X线引导下经seldinger法肝动脉栓塞化疗
E. 结肠镜引导下腹腔镜治疗结肠息肉
[单选题] 在增加列车车辆编组或( )运行间隔的情况下,城市轨道交通系统的轻轨车辆也可以承担大运量的输送任务。
A.增大
B.不调整
C.缩小
D.其它选项都错误
[单选题]额定转速为3000r/min的汽轮机在正常运行中,轴瓦振幅不应超过( )。
A.0.03mm
B. 0.04mm
C.0.05mm
D.0.06mm
[单项选择]The full influence of mechanization began shortly after 1850, when a variety of machines came rapidly into use. The introduction of these machines frequently created rebellions by workers who were fearful that the machines would rob them of their work. Patrick Bell, in Scoffland, and Cyrus McCormick, in United States, produced threshing machines. Ingenious improvements were made in plows to compensate for different soil types. Stream power came into use in 1860s on large farms. Hay rakes, hay-loaders, and various special harvesting machines were produced. Milking machines appeared. The internal-combustion engine run by gasoline became the chief power source for the farm. In time, the number of certain farm machines that came into use skyrocketed and changed the nature of fanning. Between 1940 and 1960, for example, 12 million horses and mules gave way to 5 million tractors. Tractors offer many features that are attractive to farmers. There are, for example, numerous attachments: cultivators that can penetrate the soil to varying depths, rotary hoes that chop needs; spray devices that can spray pesticides in bands 100 feet across, and many others. A piece of equipment has now been invented or adapted for virtually every laborious hand or animal operation on the farm. In the United States, for example, cotton, tobacco, hay, and grain are planted, treated for pests and diseases, fertilized, cultivated and harvested by machine. Large devices shake fruit and nut from trees; grain and blend feed, and dry grain and hay. Equipment is now available to put just the right amount of fertilizer in just the right place, to spray and exact row width, and to count out, space, and plant just the right number of seeds for a row. Mechanization is not used in agriculture in many parts of Latin America, Africa. Agriculture innovation is accepted fastest where agriculture is already profitable and progressive. Some mechanization has reached the level of plantation agriculture in parts of the tropics, but even today much of that land us laboriously worked by people leading draft animals pulling primitive plows. The problems of mechanization in some areas are not only cultural in nature. For examples, tropical soils and crops differ markedly from those in temperate areas that the machines are designed for, so adaptations have to be made. But the greatest obstacle to mechanization is the fear in underdeveloped countries that the workers who are displaced by machines would not find work elsewhere. Introducing mechanization into such areas requires careful planning.From the second paragraph, we know that ______.
A. America is highly mechanized in agriculture
B. agriculture innovation is quite popular in U.S.
C. equipment is only available in fertilizing the plant
D. different machines are invented to do different laborious jobs
[单选题]诊断慢性支气管炎的主要依据为
A.临床症状
B.肺部体征
C..X 线胸片
D.痰细菌检查
E.血常规
[判断题]创伤急救止血时,可用电线、铁丝、细绳等作止血带使用。
A.正确
B.错误
[单项选择]电压互感器交接试验,油纸绝缘的电磁式电压互感器介损因数不大于()。
A. 0.002
B. 0.003
C. 0.005
D. 0.008