热门试题:
[多项选择]脑桥出血表现
A. 眼球震颤
B. 交叉性瘫痪
C. 中枢性高热
D. 呼吸不规则
E. 两眼向病变侧同向凝视
[单选题] 工程监理单位应当审查施工组织设计中的安全技术措施或专项施工方案是否符合工程建设的( )标准。
A.推荐性
B.国家
C.强制性
D.行业
[不定项选择题]共用题干
What's Killing the Bats?
First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.
Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.
One possibility is disease. A white fungus(真菌)known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.
Another possible cause is a lack of food.For example,bats typically eat a large number of moths(蛾),and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.
Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating(冬眠)bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.
Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.
While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.
How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals.
The word“pipistrelle”in Paragraph 1 refers to______.
A.a kind of fungus
B.an area in the U.S.
C.a special cave
D.a kind of bat
[单选题]铁路旅行的主要优点在于( )
A.自由灵活,门对门运输
B.建设周期短,投资小
C.非常适合短途旅游
D.运载能力大,票价低廉
[单选题]人民公社化运动最大的失误是( )。
A.违背了社会主义的基本原则
B.片面追求提高公有化程度
C.违背了所有农民的意愿
D.严重破坏了农业生产力
[单项选择]援救海上漂浮的遇难人员时,接近遇难人员应从()
A. 任意风
B. 上风
C. 下风
[判断题]CRH系列动车组均采用无摇枕高速转向架技术。
A.正确
B.错误
[单项选择]Cushing病是由于()。
A. 下丘脑-垂体性ACTH分泌过多所致
B. 异源性ACTH分泌过多所致
C. 肾上腺腺瘤所致
D. 肾上腺腺癌所致
E. 不依赖ACTH的双侧肾上腺结节样增生所致
[单项选择] (71) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (72) for designing and constructing an improved system. (73) is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (74) . (75) is another such technique that integrates data and process concerns into constructs called objects.
A. Structured analysis
B. Information Engineering
C. Discovery Prototyping
D. Object-Oriented analysis
[多项选择]我国会计行业自律组织主要有()。
A. 中国审计学会
B. 中国财政学会
C. 中国注册会计师协会
D. 中国会计学会
[多选题]开展“三学一算”学习教育,其中,“三学”是指:各级干部学()、学(),职工学()。
A.《行规》
B.《事规》
C.《安全管理责任追究办法》
D.《奖惩实施办法》
[单项选择]一个人的活动由于有他人同时参加或在场旁观,活动效率就会提高,这种现象叫()
A. 社会惰化效应
B. 群体促进作用
C. 协同效应
D. 从众效应
[判断题]生产、经营、储存、使用危险物品的车间、商店、仓库不得与员工宿舍在同 一座建筑物内,并应当与员工宿舍保持安全距离。
A.正确
B.错误
[单选题]充电完成后,应将充电枪归位放好。巡视人员进行巡视工作时,发现未归位充电枪应()。
A.通报
B.采集证据并上报
C.归位
D.可不予处置
[单选题]低合金结构钢焊接时,过大的焊接热输入会显著降低接头的( )。
A.冲击韧度
B.抗拉强度
C.疲劳强度
[单项选择]Mike: I got a job from Dell.John: That's great news. I'm very happy for you.Mike: Thanks. I feel like celebrating. Let's go have a beer. ______.
[单选题]按照相关规定,将重大危险源向( )和相关部门备案
A.安全监管
B.公安
C.主管
[单选题](66714)超声波斜探头,除和直探头相同的几个部分外,在晶片前方还装有( )。(1.0分)
A.线圈
B.楔块
C.保护膜
D.阻尼块
[多项选择]利华食品有限公司由甲、乙、丙、丁四个股东出资设立,注册资本10万元,公司登记机关于2006年1月10日签发公司营业执照。根据公司法的规定回答以下问题:
如果甲的出资为5万元,在下列何种情况下,利华食品有限公司可以解散( )
A. 公司决定吸收兴华食品有限公司
B. 公司章程规定的营业期限届满,股东会议决定不延长公司的营业期限
C. 股东会会议上,乙、丙、丁三人同意解散公司,甲不同意解散
D. 利华食品有限公司决定与兴华食品有限公司合并,设立振兴食品有限公司
[不定项选择题]A.从胸走手
A.从手走头
B.从头走足
C.从足走腹
D.从腹走胸
E.足三阳经的走向是
[单选题]用手触摸变压器外壳时有麻电感,可能是( )。
A.母线接地引起
B.过负荷引起
C.外壳接地不良
D.铁芯接地不良
[填空题]哈罗德多马模型在充分就业下的稳定增长条件为()。
[单项选择]以下设备不属于数字X线设备的是()
A. DF
B. DSA
C. DR
D. CR
E. MRI
[单项选择]从监理的角度来讲,建设工程的信息收集由( )不同,决定收集不同的内容。
A. 委托单位
B. 介入阶段
C. 合同结构
D. 监理费用
[多项选择]在集中式空调系统中,单风管集中式系统的特点是()。
A. 设备简单,初投资较省
B. 设备集中设置,易于管理
C. 风管断面尺寸较小,对使用者无干扰
D. 各房间负荷变化不致时,无法进行精确调节
[单选题]高处作业人员不应坐在平台或孔洞的(),不应站在栏杆外作业或凭借栏杆起
吊物品。
A.上方
B.内侧
C.边缘
D.中心
[单选题]墙体砌筑过程中,在临时间断处的上下层块体间进退尺寸不小于1/4块长的竖直留槎形式属于:( )
A.斜槎
B.直槎
C.马牙槎
D.阳槎
[单项选择]54.54-0.87-3.54+7.96-0.13的值与以下哪个数最接近( )
A. 56.92
B. 56.95
C. 57.94
D. 57.99
[单选题]无线调车灯显信号当显示( )长亮加辅助语音提示时,是表示十、五、三车距离信号。
A.黄灯
B.绿灯
C.绿黄灯
D.红灯
[单项选择]级进模试模条料宽度要比()的距离小0.1~0.15mm。
A. 机架间
B. 导柱间
C. 导板间
D. 定位销间
[判断题]在行政诉讼中,涉及商业秘密的案件,当事人申请不公开审理的,人民法院应当不公开审理。
A.正确
B.错误
[多选题]普速列车规范要求,运行中做好安全宣传和防范,车内秩序、环境良好,无闲杂人员随车( )。
A.叫卖
B.拣拾
C.讨要
D.通勤
[判断题]现场工作开始前,应检查确认已做的安全措施符合要求、运行设备和检修设备之间的隔离措施正确完成。工作时,应仔细核对检修设备名称,严防走错位置。
A.正确
B.错误
[多选题]以下( )哪些机具操作人员应按规定穿戴劳动保护用品。机具应按规定安装漏电保护装置。
A.切轨机
B.打磨机
C.电焊机
D.起道机
[单项选择]甲、乙、丙、丁拟设立一个普通合伙企业,四人签订的合伙协议的下列条款中,不符合合伙企业法律制度规定的是( )。
A. 甲、乙、丙、丁的出资比例为4:3:2:1
B. 合伙企业事务委托甲、乙两人执行
C. 乙、丙只以其各自的出资额为限对企业债务承担责任
D. 对合伙企业事项作出决议实行全体合伙人一致通过的表决办法