热门试题:
[单项选择]女性,33岁,咳嗽、咳痰间断少量咯血半个月,低热1周,查体右侧胸骨旁可闻及吸气相干鸣音,咳嗽后不消失。痰涂片找到抗酸杆菌。胸部平片提示右侧上肺片状模糊阴影,水平裂稍上移针对该患者,其恰当的治疗方案应该是()
A. 抗结核药物的选择与组合与单纯肺结核的治疗不同
B. 抗结核药物的选择与组合与单纯肺结核的治疗相同
C. 抗结核药物的选择与组合与单纯肺结核的治疗相同,治疗时间应该适当延长
D. 抗结核药物的选择与组合与单纯肺结核的治疗相同,治疗时间应该延长1倍
E. 治疗方案同耐药肺结核
[判断题]登录密码当日连续输错5次,个人网银/手机银行渠道将被锁定。
A.正确
B.错误
[单选题]结肠癌最常见的组织学类型是
A.黏液癌
B.腺癌
C.未分化癌
D.黏液腺癌
E.类癌
[简答题]背斜圈闭按成因可分为哪几种类型?说明各类型特征。
[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。
Why did older volcanic eruptions do more damage than more recent ones?
A.Because they killed off life more easily.
B.Because they were brighter.
C.Because they were larger.
D.Because they were hotter.
[单项选择]下列等式中,正确的是( )。
A. 1KB=1024×1024B
B. 1MB=1024B
C. 1KB=1024MB
D. 1MB=1024×1024B
[判断题]开通区间的调度命令,不需要向司机转抄。( )
A.正确
B.错误
[单选题]弓头与接触网之间的高频振动可以通过( )装置吸收缓冲。
A.上框架
B.弓头悬挂
C.下框架
D.拉杆
[单项选择]在学术文章写作规范中,选题的中心点是:()
A. 新颖
B. 趣味
C. 热门
D. 问题点
[单选题]电动机若采用 Y—△起动时,其起动电流为全压起动的( )。
A.1 倍
B.1/3 倍
C.3 倍
[多选题]集贸市场的火灾危险性主要表现为()。
A. 建筑防火条件差.
B. 可燃商品多.
C. 人员密集.
D. 用火、用电、用气量大.
E. 防火安全管理薄弱.
[单项选择]外阴阴道假丝酵母菌病的典型临床表现是()
A. 脓性阴道分泌物,外阴瘙痒
B. 白色凝乳状或豆渣样阴道分泌物,外阴瘙痒
C. 白色水样阴道分泌物,不痒
D. 黄色泡沫状阴道分泌物,外阴瘙痒
E. 稀薄一致的阴道分泌物,外阴瘙痒
[单选题]下列物中,具有主物和从物关系的是( )。
A.自行车和车锁
B.鸡蛋与小鸡
C.羊与羊毛
D.空调与冷气
[多选题]灭火救援现场秩序作为每战必评的重要内容。灭火救援过程中,出现( )等不规范行为,一经发现全省实名通报批评,年内取消个人评优资格。
A.纪律松散
B.防护不到位
C.着装不整
D.行动迅速
[简答题]中间站利用本务机车调车,应使用有( )的调车作业通知单。
[填空题]()调整对象是产品质量监督管理关系、产品质量责任关系和产品质量检验、认证关系。
[判断题] ( )个人防护器具 A 级防护高蒸气压、可经皮肤吸收,或致癌和高毒性化学物。
A.正确
B.错误
[单选题]†年民办非企业单位可以享受( )阶段性减免企业社会保险费政策。
A.减半征收2月份至6月份基本医疗的单位缴费
B.免征2月份至6月份基本养老保险的单位缴费
C.减半征收2月份至12月份工伤保险的单位缴费
D.减半征收2月份至12月份失业保险的单位缴费
[单选题]《铁路技术管理规程(高速铁路部分)》
A.2000
B.3200
C.3800
D.6500
[单项选择]患者沉默痴呆,语无伦次,静而多喜。其诊断是()
A. 癫证
B. 狂证
C. 痫证
D. 痉证
E. 中风
[单选题]患者,女性,47岁,患风湿性心脏病二尖瓣狭窄7年余,近日上呼吸道感染后出现心力衰竭表现,乏力、稍微活动就心慌、憋气,伴有食欲减退,肝区胀痛,双下肢轻度水肿,双肺底湿啰音,心率108次/分。地高辛治疗后,该患者出现食欲减退、恶心、呕吐、视物模糊,心率为50次/分,心律不齐。应考虑患者出现了( )
A.心力衰竭加重
B.颅内压增高
C.洋地黄中毒
D.心源性休克
E.低钾血症
[判断题]孙中山于1911年12月26日在上海当选为中华民国第一任大总统。
[单项选择]乳腺癌侵犯乳房悬韧带(Cooper韧带)引起的相应体征是
A. 局部水肿
B. 乳头内陷
C. 肿瘤表面皮肤凹陷(酒窝征)
D. 橘皮样变
E. 铠甲状胸壁
[判断题]元广建设集团取得安全生产许可证后,不得降低安全生产条件,并应当加强日常安全生产管理,接受安全生产许可证颁发管理机关的监督检查。( )
A.正确
B.错误
[单项选择]The Federal Government s the central government Of the United States. It is divided into three branches: the Executive, the Legislative, and the _____.
A. Judicial
B. Justified
C. Law
D. Judicious
[单选题] 在正常情况下AC ESS BUS是由哪里提供电源的:
A.A.AC BUS 1
B.B.AC BUS 2
C.C.Emergency Generator
D.D.DC ESS BUS
[多项选择]腐蚀性物品的危险特性为()。
A. 爆炸性
B. 窒息性
C. 腐蚀性
D. 毒害性
E. 火灾危险性
[单选题]Not until quite recently________ that how important it is to learn English well.
A.did we realise
B.we realised
C.had we realised
D.we had realised
[不定项选择题]共用题干
Urbanization and Its Influence
Over half the world's people now live in cities.The latest"Global Report on Human Settlements"says a significant change took place last year. The report_______(51)this week from U.N.Habitat,a United Nations agency.
A century ago,_______(52)than five percent of all people lived in cities._______(53)the middle of this century it could be seventy percent,or_______(54)six and a half billion people.
Already three-fourths of people in_______(55)countries live in cities.Now most urban population_______(56)is in the developing world.
Urbanization can lead to social and economic progress,but also put_______(57)on cities to provide housing and_______(58).The new report says almost two hundred thousand people move _______(59)cities and towns each day.It says worsening inequalities,_______(60)by social divisions and differences in_______(61),could result in violence and crime unless cities plan better.
Another issue is urban sprawl(无序扩展的城区).This is where cities_______(62) quickly into rural areas,sometimes_______(63)a much faster rate than urban population growth.
Sprawl is common in the United States.Americans move a lot. In a recent study,Art Hall at the University of Kansas found that people are moving away from the_______(64)cities to smaller ones.He sees a_______(65)toward"de-urbanization"across the nation.
_________(54)
A.really
B.ever
C.barely
D.almost
[简答题]在运行的电流互感器二次回路上工作时,应采取哪些安全措施?
[多选题]信息高速公路包括( )等几个部分。(易)(基础知识)
A.通信网
B.信息资源
C.信息服务设备
D.有关的软件与工具
[单选题]依据《机动车驾驶证申领和使用规定》,申请大型客车、牵引车、城市公交车、中型客车、大型货车、无轨电车或者有轨电车准驾车型的,两眼裸视力或者矫正视力应达到对数视力表( )以上。
A.1.2
B.1.5
C.5.0
D.5.2
[单项选择]()是每个公民在家庭生活中应该遵循的行为准则。
A. 尊老爱幼
B. 男女平等
C. 邻里团结
D. 家庭美德