[单项选择] What’’s Happening While Sleeping Sleep is very important to humans. The average person spends 220,000 hours of a lifetime sleeping. Until about thirty years ago, no one knew much about sleep. Then doctors and scientists began doing research in sleep laboratories. They have learned a great deal by studying people as they sleep, but there is still much they don’’t understand. Scientists study the body characteristics that change during sleep, such as body temperature, brain waves, blood pressure, breathing, and heartbeat. They also study rapid eye movement (REM). These scientists have learned that there is a kind of sleep with REM and another kind with no rapid eye movement (NREM). NREM is divided into three stages. In stage one, when you start to go to sleep, you have a pleasant floating feeling. A sudden noise can wake you up. In stage two, you sleep more deeply, and a noise will probably not wake you. In stage three, which you reach in less than
A. Y
B. N
C. NG

[多选题]闸阀的主要特点有( )。
A.流体阻力小
B.启闭力矩小
C.密封性能好
D.结构复杂

[单选题]当人体与某种形式的能量接触时，是否产生伤害以及产生伤害的严重程度，主要取决于（）
A.作用于人体的能量的大小
B.人体接触能量的时间和频率
C.能量的集中程度
D.身体接触能量的部位

[判断题]万能角度尺可以测量0°～360°的任何角度

[单项选择]下述疾病均能导致门静脉高压症，但以哪个疾病门脉高压最明显
A. 血吸虫件肝硬化
B. 坏死后性肝硬化
C. 胆汁性肝硬化
D. 淤血性肝硬化

[单项选择]开口销的分开角度不应小于（）。
A. 45°
B. 60°
C. 75°
D. 90°

[单选题]根据《建设项目工程总承包合同示范文本GF-2011-0216》，下列说法正确的是()。
A.预付款支付的时间和额度在通用条款中约定
B.预付款抵扣完后，承包人应及时向发包人退还预付款保函
C.发包人延误付款20天以上经催告仍不付款的，承包人即可停工
D.合同解除发包人有权要求承包人支付尚未扣完的预付款

[判断题]三相电缆的保护管可用钢管，单相电缆的保护管也用钢管。
A.正确
B.错误

[单项选择]有如下过程代码：
Sub var_dim（　）
Static numa As Integer
Dim numb As Integer
numa=numa+2:numb=numb+1
Print numa; numb
End Sub
连续三次调用var_dim过程，第三次调用时的输出是
A. 2 1
B. 2 3
C. 6 1
D. 6 3

[单选题]电石渣装车操作中，待渣车料位至（）左右，装车平台操作人员需要迅速联系阀门操作人员开始快速的关闭阀门。
A.0.6
B.0.65
C.0.7
D.0.75

[单选题]高级宴席的配制,( )占有较大比例。
A.大菜
B.热炒菜
C.冷菜
D.水果点心

[判断题]( ) 车站在向段管线、岔线、货物线送车时，应及时通知段管线、岔线、货物线人员
A.正确
B.错误

[判断题](判断题)省局煤矿瓦斯抽采作业试题,事故隐患治理,定期向负有安全生产`监督管理职责
部门报告事故隐患治理情况。( )判断题
A.正确
B.错误

[多选题]冬季采用火炉暖棚法施工，应制订相应的（）和防止（）措施，并设有不少于2人的值班人员。
A. A.防火
B.B.一氧化碳中毒
C.C.防止烧伤
D.D.二氧化硫中毒

[单选题]区域站负责所辖区内物业人员的日常管理，定期组织（ ），对正线物业存在的问题及阶段性工作要求进行明确，督促现场整治整改。
A.宣贯会
B.综治会议
C.业务培训
D.分析会

[简答题]请简单说明继电器是如何吸起的

[判断题]环境影响评价文件中的环境影响报告书、环境影响报告表、环境影响登记表，应当由具有相应环境影响评价资质的机构编制。（ ）
A.正确
B.错误

[单项选择]


A. making
B. to make
C. being made
D. to be made

[单项选择]With the sun (setting), we stopped (working), (putting) away our tools and were (going) to go home.
A. setting
B. working
C. putting
D. going

[判断题]氩弧焊时会产生强度较高的紫外线和红外线,因此焊接时应加强防护。()
A.正确
B.错误

[填空题]

A -- light gray
B -- deep yellow
C -- dark brown
D -- rust
E -- orange
F -- Chinese red
G -- pink
H -- rose
I -- scarlet
J -- purple
K -- navy blue
L -- moss green
M -- snow white
N -- mocha
O -- cream

（）海军蓝（）橙色

[单项选择]2012年全国深化税收征管改革工作会议提出，构建现代化税收征管体系，要以（）为导向。
A. 专业化
B. 信息化
C. 重点税源管理
D. 风险管理

[多选题]()可以收缴假币。
A.人民银行;
B.商业银行;
C.信用社;
D.证券公司。
E.收费站;

[单项选择]按《国际危规》规定，闪点高于35℃且燃点高于100℃的液体属于（）。
A. 不维持燃烧的液体
B. 不稳定物质
C. 不相容物质
D. 不能运输的物质

[单项选择]属于工程承包合同必备条款的是( )。
A. 竣工验收条款
B. 双方相互协作条款
C. 技术资料条款
D. 工程质量条款

[不定项选择题]共用题干 Older Volcanic Eruptions
Volcanoes were more destructive in ancient history,not because they were bigger,but because the carbon dioxide they released wiped out life with greater ease.
Paul Wignall from the University of Leeds was investigating the link between volcanic eruptions and mass extinctions.Not all volcanic eruptions killed off large numbers of animals,but all the mass extinctions over the past 300 million years coincided with huge formations of volcanic rock.To his surprise,the older the massive volcanic eruptions were,the more damage they seemed to do.He calculated the"killing efficiency" for these volcanoes by comparing the proportion of life they killed off with the volume of lava（熔岩）that they produced.He found that size for size,older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.
The Permian（二叠纪）extinction,for example,which happened 250 million years ago,is marked by floods of volcanic rock in Siberia that cover an area roughly the size of western Europe.Those volcanoes are thought to have pumped out about 10 gigatonnes of carbon as carbon dioxide.The global warming that followed wiped out 80 percent of all marine genera（种类）at the time,and it took 5 million years for the planet to recover.Yet 60 million years ago,there was another huge amount of volcanic activity and global warming but no mass extinction.Some animals did disappear but things returned to normal within ten thousand of years."The most recent ones hardly
have an effect at all,"Wignall says.He ignored the extinction which wiped out the dinosaurs 65 million years ago,because many scientists believe it was primarily caused by the impact of an asteroid（小行星）.He thinks that older volcanoes had more killing power because more recent life forms were better adapted to dealing with increased levels of CO₂．
Vincent Courtill.ot,director of the Paris Geophysical Institute in France,says that Wignall's idea is provocative.But he says it is incredibly hard to do these sorts of calculations.He points out that the killing power of volcanic eruptions depends on how long they lasted.And it is impossible to tell whether the huge blasts lasted for tliousands or millions of years.He also adds that it is difficult to estimate how much lava prehistoric volcanoes produced,and that lava volume may not necessarily correspond to carbon dioxide emissions。 When did dinosaurs become extinct?
A.300 million years ago.
B.250 milliOn years ago.
C.60 million years ago.
D.65 million years ago.

[多项选择]保险公司有下列情形之一的，应当经保险监督管理机构批准（）：
A. 变更名称；
B. 变更注册资本；
C. 变更公司或者分支机构的营业场所；
D. 修改公司章程；

[简答题]工程档案预验收时，对档案内容验收的要求是什么？

[判断题]铁塔连接螺栓因无扣部分过长，为了使螺栓紧固，应该将螺栓穿入连接的角钢后再将螺母拧紧。
A.正确
B.错误

[多选题]脱离电源后，触电伤员如意识丧失，应在开放气道后10s内用（）的方法判定伤员有无呼吸。
A.叫
B.看
C.听
D.试

[单选题]实施起重作业时安全注意事项错误的是？
A.起重设备应在额定安全工作范围，不得极限操作
B.合理使用起重器材，正确选择起重位置
C.起重操作作业必须佩戴手套头盔等防护装置，可不佩戴护目镜（面罩）
D.采取必要加固措施，防止滑动发生意外伤害

[判断题]ID467使用一维条码,必须通过连接数据库的方式提取信息才能明确条码所表达的信息含意()
A.正确
B.错误

[单项选择]在微波系统中，往往需要将一路微波功率按比例分成几路，下列哪个元件不属于功率分配元器件（）。
A. 微波谐振器
B. 功率分配器
C. 波导分支器
D. 定向耦合器

[单选题]送电合闸操作应按照（ ）的顺序依次进行。
A.断路器(开关)—电源侧隔离开关(刀闸)—负荷侧隔离开关(刀闸)
B.断路器(开关)—负荷侧隔离开关(刀闸)—电源侧隔离开关(刀闸)
C.负荷侧隔离开关(刀闸)—电源侧隔离开关(刀闸)—断路器(开关)
D.电源侧隔离开关(刀闸)—负荷侧隔离开关(刀闸)—断路器(开关)

[单项选择]人初乳含（）
A. 糖类最高
B. 蛋白质、糖类及脂肪均最低
C. 脂肪量最高
D. 脂肪量最少而蛋白质量最多
E. 蛋白质量较低

[判断题]常旅客会员是本人申请并通过铁路常旅客身份认证的自然人。
A.正确
B.错误

[判断题] 列车工作人员发现车门未完全关闭、存在缝隙等异常情况（车载监控屏未报警）时，通知司机立即停车并通知随车机械师，随车机械师赶赴故障车门隔离处理。
A.正确
B.错误

[单选题]网约车平台公司应当建立（）和乘客投诉处理制度，如是采集与记录驾驶员服务信息。
A.信用体系
B.评价体系
C.黑名单
D.白名单

[单项选择]对于不重要的组成部分，集团项目组应当在集团层面实施（）。
A. 询问
B. 检查
C. 分析程序
D. 重新执行