热门试题:
[多选题]【作战训练安全常识】预判建筑坍塌应从哪些方面进行观察?
A.观察承重墙有无出现裂缝。
B.观察承重梁混凝土保护层有无出现裂缝、钢筋外露、挠度增大。
C.观察承重柱混凝土保护层有无爆裂、钢筋屈服向外凸出、扭曲变形
D.观察建筑物的门框有无变形,导致屋门无法闭合或打开
[单项选择]By saying that "in too many academic fields, the work has no context" (Par
A. A.l) the author means that the teaching in these areas ______. ignores the actual situationB. is not based on the right perspectiveC. only focuses on an integrated core of common learningD. gives priority to the cultivation of a global vision among students
[单项选择]
To preserve food, the growth of bacteria (细菌) must be controlled. Water, warmth, and food are all needed for bacteria to become strong and healthy. Some kinds of bacteria need air, but other kinds grow only when air is absent. Extremes of temperature, either hot or cold, can kill bacteria.
Before electric ice boxes were invented, freezing and cooling were limited by the cold climate. In warmer regions, food was cooled by putting it in the shade, in cold water from the well, or in pits in the ground.
Cooking will usually kill bacteria if the temperature is high enough and long enough. Certain methods of cooking remove water, and this aids in preserving food. Drying is the oldest and most common method of preserving food. Food can be dried by the sun, by heat or by combination of the two.
Salt was used by many hunting people. When people began to cat vegetables, salt be came a needed part of their life. Salt helps to preserve food because it slows or stops b
A. Put the food ill a cold place.
B. Cook the food well.
C. Dry the food by sun.
D. It is not told.
[多选题]扑救储罐火灾时,消防车辆应停放在()地势较高的位置。
A.上风
B.侧上风
C.下风
D.侧下风
[单选题]《铁路技术管理规程》规定,列车按运输性质分为旅客列车、( )、军用列车、货物列车、路用列车。
A.行邮行包列车
B.行邮列车
C.混合列车
D.特快货物班列
[单选题]有限空间作业应执行()要求。
A.A.先检测,再通风,后作业
B.B.先通风,再检测,后作业
C.C.先检测,再作业,后通风
D.D.先通风,再作业,后检测
[判断题] 独立避雷针的接地电阻,应符合的要求为不大于13Ω。( )
A.正确
B.错误
[判断题]行政机关为了公共利益的需要可以依法变更或者撤回已经生效的行政许可。 由此给公民、 法人或者其他组织造成财产损失的, 行政机关依法免予补偿。( )[ 中 ]
A.正确
B.错误
[单项选择]不符合骨性关节炎特点的是()
A. 晨僵
B. 骨摩擦音
C. 关节肿痛
D. 好发于青壮年人
E. 压痛和被动痛
[单项选择]凝血因子中除外哪一种,均为蛋白质。()
A. 凝血因子Ⅱ
B. 凝血因子Ⅲ
C. 凝血因子Ⅳ
D. 凝血因子Ⅻ
E. 凝血因子ⅩⅢ
[单项选择]下述哪一项改变符合腺性唇炎的临床表现()
A. 唇红糜烂、溃疡、痂皮
B. 唇红干燥、脱屑、皲裂
C. 唇肿胀,翻开唇内侧粘膜可见粘液或脓性分泌
D. 唇部反复肿胀,伴裂纹舌
E. 唇肿胀迅速发生,数小时消退
[多选题]() 对有触电危险、检修(施工)复杂容易发生事故的工作,应增设专责监护人,并
确定其监护的人员和范围。
A.工作票签发人
B.工作许可人
C.工区领导
D.工作负责人
[单选题]调车作业在空线上牵引运行时,不准超过( )km/h。
A.35
B.40
C.45
D.50
[单项选择]转子滑囊炎的表现不包括()
A. 蹲坐时疼痛加重
B. 内旋外展时疼痛加重
C. 疼痛向下放射至大腿外侧,甚至到膝下
D. 难以登梯
E. 行走的耐受力下降
[判断题]对于有方向性天线的电磁辐射场强测量,发射机功率P≤100kW时,应按天线辐射主瓣的半功串角内评价到0.5km,如高层建筑的部分楼层进入天线辐射主瓣的半功率角以内时,应选择不同高度对该楼层进行室内或室外的场强测量。
[判断题]判断题:液体在管道中流动时,由于存在液阻而造成能量损失。
A.正确
B.错误
[多选题]正式领用额度遵循的原则包括()
A.风险最低
B.效益优先
C.同等条件下满足营销需求
[单选题]安全电压是指不致使人直接致死或致残的电压,一般环境条件下允许持续接触行业规定的安全电压为( )。
A.≤24V
B.≤36V
C.≤12V
D.≥36V
[填空题]1310nm波长A类调幅光发送机的载波组合三次差拍比(C/CTB)大于或等于()dB。
[单选题]《国家综合性消防救援队伍内务条令》自 ( ) 起施行
A.2019年12月20日
B.2018年10月15日
C.2018年12月1日
D.2019年1月1日
[不定项选择题]共用题干
The Greatest Mystery of Whales
The whale is a warm-blooded,air-breathing animal,giving birth to its young alive,sucking them-and, like all mammals,originated on land.There are many______(51)of this.Its front flippers(鳍状肢), used for steering and stability,are traces of feet.
Immense strength is______(52)into the great body of the big whales,and in fact most of a wha'e'sbo衡is one gigantic muscle.The blue whale's pulling strength has been estimated______(53) 400 horsepower.One specimen was reported to have towed(拖)a whaling vessel for seven hours at the______ (54)of eight knot(节).
An angry whale will______(55).A famous example of this was the fate of Whaler Essex,______(56)was sunk off the coast of South America early in the last century.More recently,steel ships
have ___________( 57 ) their plates buckled(使弯曲)in the same way.Sperm whales(抹香鲸)were known to seize the old-time whaleboats in their jaws and crush them.
The greatest______(58)of whales is their diving ability.The sperm whale dives to the bottom for his ______(59)food,the octopus(章鱼).In that search he is known to go as far down as 3,200 feet,where the ______(60)is 1 ,400 pounds to a square inch.Doing so he will______(61)underwater as long as one hour.Two special1 skills are involved in this storing up enough______(62)(all whales are air-breathed ) and tolerating the great change in pressure.Just how he does it scientists have not______(63).It is believed that some of the oxygen is stored in a special______(64)of blood vessels,rather than just held in the lungs.And it is believed that a special kind of oil in his head is some sort of a compensating mechanism that ______(65)adjusts the internal pressure of his body.But since you can't bring a live whale into the laboratory for study,no one knows just how these things work.
58._________
A.interest
B.job
C.danger
D.mystery
[判断题]各级人民政府可以建立健全政府信息公开工作考核制度、社会评议制度和责任追究制度。
A.正确
B.错误
[判断题]挖掘机机器的重量和工作负荷是通过底架、履带架传给支承轮。
[多项选择]记入交易账户的头寸应当满足下列哪些基本要求?( )
A. 具有经高级管理层批准的书面的头寸/金融工具和投资组合的交易策略
B. 具有明确的交易市场秩序
C. 具有明确的头寸管理政策
D. 具有明确的头寸管理程序
E. 具有明确的持有目的
[单选题]餐馆:厨师:菜肴( )
A.酒吧:乐队:音乐
B.体育馆:运动员:网球
C.商场:顾客:衣服
D.工地:工人:建筑
[不定项选择题]延迟退休为何一再成为一个公共热点话题,究其根源,无非是社会养老金面临吃紧的压 力。 在越来越多的适龄退休人员面前,一个残酷的现实是,新生缴纳养老金的力量没有跟上。 在 这种情况下,延迟退休提出来的确可以起到缓解局面的作用,但说到底,这仍是一种饮鸩止渴的行为。 这种退休模式不过是把眼前的支付压力转移给了未来。 如果不从根子上做大社会养老 金,沿着养老体制并轨的路线积极作为,早晚有一天社会养老体系又要面临同样的困境。
对这段文字理解不正确的一项是:
A.用延迟退休来解决养老金吃紧的问题治标不治本
B.唯有从根子上做大社会养老金方可解养老金之困
C.延迟退休是应对我国日益严峻的养老问题的无奈之举
D.推进养老体制并轨也无法缓解我国养老金吃紧的压力
[判断题]TRT停产检修,残留煤气处理干净,检测合格后,可直接动火,不用再通氮气或蒸汽。
A.正确
B.错误
[不定项选择题]模仿法的基本操作程序中最重要是步骤是( )单选
A.选择合适场地
B.设计示范行为
C.选择好靶目标
D.及时强化正确的模仿行为
[单选题]凸轮轴轴向间隙的允许极限为( )mm。
A.0.10
B.0.15
C.0.025
D.0.015
[单选题]下列()会议是我国改革开放的标志。
A.A、1956年党的八大
B.B、1978年党的十一届三中全会
C.C、1987年党的十三大
D.D、1997年党的十五大
[单选题]某男,25岁。铸造工作半年,近1个月来感乏力、食欲缺乏、气促、发热、盗汗,伴咳嗽、咳痰。查体:体温39℃,心率90次/分,胸部听诊有散在干、湿啰音。X线表现:两肺遍布类圆形小阴影,肺门淋巴结增大。该患者最可能患的是
A.滑石肺
B.肺癌
C.二期矽肺伴结核
D.血行播散型肺结核
E.肺含铁血黄素沉着症
[判断题]当其他线程调用lock时,它们被阻塞,直到第一个线程释放锁对象。
A.正确
B.错误
[单选题]企业应急预案的编制要做到( ),使预案的制定过程成为隐患排查治理的过程和全员应急知识培训教育的过程 。
A.专家参与
B.领导参与
C.全员参与
[判断题]()酸洗除垢加入缓蚀剂的作用是防止锅炉金属被酸所腐蚀。
A.正确
B.错误
[判断题]吉芬物品是一种需求量与价格同方向变化的特殊商品
A.正确
B.错误
[单项选择]某汽车集团在全球各地设有卡车业务部,但直到2005年,各地在研发、部件方面都很少共享,如今公司决定在研发和设计方面进行集中控制,使企业在欧洲、美国和亚洲各地分支机构能共享底盘等部件。该集团是从()向()转型?
A. 多国公司;跨国公司
B. 全球公司;跨国公司
C. 多国公司;地区公司
D. 母国公司;多国公司