热门试题:
[单项选择]下列哪项无助于呼吸衰竭病因().
A. 肺通气灌注扫描
B. 血生化
C. X线胸片
D. 动脉血气分析
E. 肺功能
[判断题]并联电容器装置总回路中的断路器,应具有切除和闭合所连接的全部电容器组的额定电流和开断总回路短路电流的能力。
A.正确
B.错误
[单选题]( )______是保护人身安全的最后一道防线。
A.个体防护
B.隔离
C.避难
D.救援
[多项选择]展览物品( ),货主或其代理人应持有关单证向出入境检验检疫机构报检,出入境检验检疫机构根据有关规定出具《入境货物通关单》。
A. 入境前
B. 入境时
C. 入境后
D. 入境转运
[判断题]气体火焰加工中氧气是最常用的可燃气体。( )
[多项选择]根据《避免事故奖励办法》规定,符合()条件者给予奖励。
A. 岗位人员发现本岗位不易被发现事故隐患,并及时汇报
B. 非本岗位人员发现事故隐患,并及时汇报
C. 本岗位人员发现的重大事故隐患,经果断、正确处置有效避免事故的发生
D. 对出现的重大险情正确判断、果断处置,避免事故发生或扩大
E. 及时发现、制止有可能导致事故发生的“三违”现象者
[单选题] 在诺顿的运行界面中,其扫描对象不包括______。
A. 指定盘扫描
B. 自定义扫描
C. 全面扫描
D. 快速扫描
[判断题]《铁路货物损失处理规则》不作为承运人与托运人、收货人划分责任的依据。
A.正确
B.错误
[不定项选择题]A.DNA多聚酶抑制剂
A.核苷酸还原酶抑制剂
B.胸腺核苷合成酶抑制剂
C.二氢叶酸还原酶抑制剂
D.嘌呤核苷合成酶抑制剂
E.阿糖胞苷、吉西他滨属于( )
[单项选择]男,60岁,高血压病20年,平时血压180~190/100~110mmHg,3年前患急性心梗,本次因呼吸困难入院,查体:BP180/100mmHg,P90次/分,双肺底少许水泡音,心率90次/分,节律勿齐,肝脾未及。选药中应考虑()
A. 利尿剂+CCB
B. ACEI+CCB+β-Blockers+利尿剂
C. α-Blockers+β-Blockers
D. ACEI+α-Blockers
E. ACEI+β-Blockers
[单选题]高压试验应填用( )。
A. 变电站(发电厂)带电作业工作票
B.变电站(发电厂)第一种工作票
C.变电站(发电厂)第二种工作票
D.变电站(发电厂)电力电缆工作票
[判断题]各种机具、设备及其附属配件、吊具、吊索等必须严格按要求定期检查,并
做好记录备查。
A.正确
B.错误
[单选题]20世纪80年代伊始,我国就已经对新能源车开展了研究,主要是对压缩天然气、液化石油气、()等方面开展部分研究。
A.甲醇
B.乙醇
C.丙醇
D.丁醇
[单选题]434.不停电更换柱上变压器作业,当变压器更换完毕后,一般情况下在合变压器低压开关之前应( )。
A.测量相间电压
B.核相
C.测量负荷电流
D.测量容性电流
[单选题]《医疗废物管理条例》提出:医疗废物集中处置单位的贮存、处置设施,应当远离(),与工厂、企业等工作场所有适当的安全防护距离,并符合国务院环境保护行政主管部门的规定。
A.居(村)民居住区和水源保护区
B.居(村)民居住区
C.水源保护区
D.居(村)民居住区、水源保护区和交通干道
[单选题]49.(93930)有效厚度与有效渗透率的乘积叫( )。(1.0分)
A.A、采油指数
B.B、采液指数
C.C、压缩系数
D.D、地层系数
[单项选择]霍桑试验证明人是()
A. "工具人"
B. "机器人"
C. "经济人"
D. "社会人"
E. "生物人"
[单选题] 《安全生产法》第六十八条规定,()级以上地方各级人民政府应当组织有关部门制定本行政区域内特大生产安全事故应急救援预案,建立应急救援体系。
A.县;
B.市;
C.省;
D.地区;
[判断题]由大小相等、方向相反,作用线互相平行而不共线的两个平行力称为力矩。( )
[判断题]CAM技术是利用计算机对制造过程进行设计、管理和控制的技术。( )
[单项选择]在关系代数运算中,基本运算有并、差、笛卡尔积、选择、投影,其他运算可由这些运算表示。可表示连接运算的是( )。
A. 并、选择
B. 差、笛卡尔积、投影
C. 笛卡尔积、投影
D. 笛卡尔积、选择
[单项选择]Ever since the Simiths moved to the lake area a year ago,they ______ better health.
A. could have enjoyed
B. had enjoyed
C. have been enjoying
D. are enjoying
[单项选择]WorldWideWeb的浏览器有许多种,下面不是WWW浏览器的是()。
A. 基于UNIX操作系统的Lynx
B. NCSAMosaicforX-windows
C. AirMosaic,Netscape,Cello,NCSAMosaicforMicrosoftWindows
D. IRC
[简答题]什么叫原始误差?车削轴类零件时,由于车刀的哪些原因,而使表面粗糙度值达不到要求?
[单项选择]
对于一个大型的软件项目,由于项目的复杂性,需要进行一系列的估算处理。主要按(1)和(2)手段进行。估算的方法分为三类:从项目的整体出发,进行(2)的方法称为(3)估算法。把待开发的软件细分,直到每一个子任务都已经明确所需要的开发工作量,然后把它们加起来,得到软件开发总工作量的方法称为(4)估算法。而把待开发的软件项目与过去已完成的软件项目做类比,区分出类似部分和不同部分分别处理的方法称为(5)估算法。
(1)处应该选择()
A. 类推
B. 类比
C. 分解
D. 综合
[单项选择]
When the early settlers, especially the British, arrived in the New World, the hardships and dangers awaiting them were totally unexpected. Had it not been for some friendly Indians, the colonists never would have survived the terrible winters. They knew nothing about planting crops, hunting animals, building sod houses, or making clothe from animal skins. Life in England had been much simpler, and this new life was not like what they had expected.
The settlers did introduce iron tools, muskets for hunting, domesticated animals, and political ways to the Indians. In exchange, the settlers learned to build canoes for water transportation and snowshoes and toboggans for winter traveling. The Indians also taught them to blaze trails through the forest, to hunt large animals and trap smaller ones, and to spear fish in the lakes and streams.
The natives also introduced to the settlers typical foods such as turkey, corn, squash, beans, and pumpkin. Everything possible w
A. Means for winter traveling.
B. Methods of fishing.
C. How to hunt large animals.
D. Political ways.
[判断题]按照企业会计制度规定,现金折扣和销售折让在实际发生时计入当期财务费用。()
[多项选择]箕斗由哪几部分组成。()
A. 悬挂装置
B. 斗箱
C. 拉紧装置
D. 卸载闸门
[单项选择]下列哪项不是维生素A缺乏的眼部表现()
A. 暗光下视力减退
B. 暗适应时间延长
C. 毕脱斑
D. 眼结膜充血
E. 角膜溃疡
[单项选择]A variety of significant, attractive short-term benefits will drive the development of modern self-sufficient homes. These include security from severe weather, climate changes, and natural disasters; security from infectious diseases and related health problems; a fresh and nutritious diet; a dependable food supply; and security from global unrest.
But the real benefit of Earth Homes will be the long-term sustainability of our planet. It should be no secret that the planet is experiencing unusual weather and climate abnormalities. The 10 hottest years in recorded history have all been in the last 15 years; the 1990s were the hottest decade on record. The Midwestern heat wave of 1995 killed 669 people in Chicago. In 1996, we had a season of record heat spells, and 1997 was the single wan nest year on record--until 1998 shattered global temperature records. Record-high temperatures throughout the southern United States during the summer of 1998 forced the shutdown of Walt Disney Wo
A. stop gas emissions
B. lower the temperature
C. reduce the use of coal, oil, and gas
D. cut off the use of coal, oil, and gas
[单项选择]在组织中,某级管理人员的管理跨度的大小不受( )因素影响。
A. 职能的难易程度
B. 管理层次的多少
C. 工作制度和程序
D. 工作的相似程度
[单项选择]汽车通常由五大系统组成,请问下面哪项不是属于汽车的五大系统()
A. 电子系统
B. 行驶系统
C. 转向系统
D. 动力系统
[单项选择]America's technological universities and government laboratories are generally ______.
A. loved by scientists in other parts of the world
B. disliked by scientists in other parts of the world
C. admired by scientists in other parts of the world
D. jealous of scientists in other parts of the world
[判断题]断开车厢一侧电气柜最近的一个LCD电源后,其他LCD不受影响。
A.正确
B.错误