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[单选题] 在一定温度下,易燃. 可燃液体表面上产生的蒸气,当与空气混合后,一遇着火源,就会发生一闪即灭的燃烧,这种现象叫做( )。
A. 闪燃
B. 瞬燃
C. 闪点
D. 爆闪

热门试题:

[单选题]电气设备停电后即使是事故停电在未( )和做好安全措施以前不得触及设备或进入遮栏
A.拉开有关刀闸
B.得到调度许可
C. 履行许可手续
[单选题]再生障碍性贫血时,最好的确诊方法是:
A.血象检查
B.骨髓象检查
C.胃酸检查
D.X线检查
E.血清铁测定
[单选题]室内火灾,随着惰性物质的增加,就可相对( )空气中的氧浓度。
A.增加
B.减少
C.先减少后增加
D.先增加后减少
[单选题]电缆通道及变电站内的电缆支架及接地焊接等动火作业需办理( )。
A.动火工作票
B.第一种工作票
C.第二种工作票
D.施工作业票B
[单选题]122电磁流量计安装在干燥通风处,环境温度在-20℃~+60℃,相处湿度小于()%。
A.35
B.55
C.85
D.100
[单项选择]组态系统硬件使用下列哪个软件?()
A. Control Builder
B. Enterprise Model Builder
C. Quick Builder
D. HMI Display Builder
[单项选择]机场使用细则中提供的主要障碍物,在半径15千米以外、50千米以内的高度标注:().
A. 场压高
B. 海压高
C. 标准气压面高
[多项选择]我国农业社会主义改造的原则和方针包括()。
A. 自愿互利
B. 国家帮助
C. 快速前进
D. 积极领导
E. 典型示范
[单项选择]Questions 13 to 15 are based on the conversation you have just heard.
A. Bad weather.
B. Human error.
C. Breakdown of the engines.
D. Failure of the communications system.
[单选题]运输的基本效用和功能是(  )。
A.缩短货物的运输时间
B.实现劳动对象的空间位移
C.满足客户的货物运输需求
D.提供货物转移的中间场所
[判断题]犯组织、领导、参加恐怖组织罪,又实施杀人、爆炸、绑架等犯罪的,应数罪并罚。
A.正确
B.错误
[单选题]D5-1404正常工作温度是多少?
A.180℃
B.200℃
C.241℃
D.245℃
[简答题]

与传统模铸相比,连铸的优越性是什么?


[多项选择]各地方、各部门、各单位的领导人对()和()依法提供的农业普查资料不得自行修改,不得强令、授意普查办公室、普查人员和普查对象篡改农业普查资料或者编造虚假数据,不得对拒绝、抵制篡改农业普查资料或者拒绝、抵制编造虚假数据的人员打击报复
A. 普查办公室
B. 统计局
C. 普查人员
D. 普查对象
[单选题]在继电器铭牌上标有JWJXC-H125/0.44,它表示型继电器。
A. 无极加强接点
B. 无极加强接点缓放插入式
C. 无极加强接点时间
D.无极加强接点插入式
[多选题]影响化学反应速度的因素主要有( )。
A.浓度
B.压强
C.温度
D.催化剂
[判断题]平行线路之间存在零序互感,当相邻平行线流过零序电流时,将在线路上产生感应零序电动势,对线路零序电流幅值不产生影响,只改变零序电流与零序电压的相位关系.; 收藏该题
A.正确
B.错误
[单项选择]以所购商用房(通常要求借款人拥有该商用房的产权)作抵押申请商用房贷款的,由( )决定是否有必要与开发商签订商用房回购协议。
A. 借款人
B. 开发商
C. 法律规定
D. 贷款银行
[单项选择]

Cheating is nothing new. But today, educators and administrators are finding that instances of academic dishonesty on the part of students have become more frequent and are less likely to be punished than in the past. Cheating appears to have gained acceptance among good and poor students alike.
Why is student cheating on the rise No one really knows. Some blame the trend on a general loosening to the fact that today’s youth are far more pragmatic than their more idealistic predecessors. Whereas in the late sixties and early seventies, students were filled with visions about changing the world, today’s students feel great pressure to conform and succeed. In interviews with students at high schools and colleges around the country, both young men and women said that cheating had become easy. Some suggested they did it out of spite for teachers they did not respect. Others looked at it as a game. Only if they were caught, some said, would they feel guilty. "
A. They did not like teachers.
B. They considered it as a game.
C. They find something wrong with evaluation system.
D. They are afraid of competition.

[判断题]银行业金融机构的高级管理层应当承担洗钱和恐怖融资风险管理的最终责任。
A.正确
B.错误
[名词解释]行政法律关系
[单选题]A.结核球
A.淋巴瘤
B.结核性空洞
C.结核性胸腔积液
D.粟粒性肺结核
E.癌性空洞应鉴别
[填空题]It’s official that married people are healthier, or at least they think they are. An American {{U}} (36) {{/U}}of over 100,000 people shows that, despite changing social{{U}} (37) {{/U}}in society, there is a link between being married and being{{U}} (38) {{/U}} One reason could be that people with physical, mental or{{U}} (39) {{/U}}problems are{{U}} (40) {{/U}} likely to marry in their first place, but married people also{{U}} (41) {{/U}}from greater support from family and friends and this{{U}} (42) {{/U}}their health. Divorce and loss of a close friend or relative increase depression, as well as affecting many people{{U}} (43) {{/U}} Married people are less likely than single people to smoke, drink heavily or drive after they have been drinking.{{U}} (44) {{/U}}. All of these reduce the chances of disease or injury. {{U}} (45) {{/U}} So it seems that the best advice is get married, but make sure you find the right partner. {{U}} (46) {{/U}}
[单项选择]下面 ______ 机制允许对一个函数名给出多个函数定义
A. 封装性
B. 继承性
C. 函数重载
D. 多态性
[单选题]在油的密度试验期间,环境温度变化应不大于(____)℃。
A.A 5
B. B 4
C. C 2
D. D 1
[单项选择]
Tips for Getting a Good Night’s Sleep

I have to admit something—I don’t sleep. Okay, I sleep, but it’s not nearly enough. I’m lucky if I get seven hours a night, and on the weekends Let’s just say the number decreases significantly. Judging by the long lines at the sixteen Starbucks I pass on my way to work, I’m not alone.
Work, stress, and social lives all pose a devastating effect on our precious sleep cycles. The majority of us are not only lacking necessary sleep hours, but the quality of our sleep leaves something to be desired. Hoping to curb my morning dullness and mid-afternoon sleepiness, I consulted two professional sleep experts to find out how we can achieve the best kind of sleep—sleep that leaves us feeling rested, alert, and not so dependent on caffeine.
Figure out your perfect number
The oft-quoted "eight hours a night" is a rule not unlike "eight glasses of water a day"—good in the
A. Falling asleep quickly.
B. Feeling tired in the afternoon occasionally.
C. Waking up early in the morning.
D. Feeling rested all day.
[单项选择]在计算机内部,无论是数据还是指令均以二进制数的形式存储,人们在表示存储地址时常采用几位二进制位表示
A. 2
B. 8
C. 10
D. 16
[单项选择]20世纪中国20—30年代持续十年之久,对人文社会科学发展影响重大的论战是().
A. 东西方文化关系的论战
B. 科学与人生观论战
C. 中国社会性质论战
D. 中国共产党马克思主义与各种主观主义特别是教条主义的论争
[单项选择]旧区改建等区域性开发编制建设规划时,( )进行环境影响评价。
A. 应当
B. 不应
C. 宜
D. 不宜
[单选题]患者,27岁,男性。因超速驾驶于3小时前发生交通事故,其左下腹撞方向盘后感腹痛、腹胀明显,局部有腹壁肿胀、压痛±,反跳痛未引出,拟定诊断性腹腔穿刺,其穿刺点应选择
A.腋前线与脐水平线交点
B.腋中线与脐水平线交点
C.锁骨中线与脐水平线交点
D.脐与耻骨联合连线的中点上方1.0cm
E.髂前上棘与脐连线中、内1/3交点
[单项选择]甲将自己的个人独资企业委托乙管理,并在合同中约定,10万元以上的合同要经甲同意。乙在受托期间,与不知情的丙签订了交易额为15万元的采购合同。根据个人独资企业法律制度的规定,下列表述正确的是()。
A. 该合同无效,如果给甲造成损失,由乙承担赔偿责任
B. 该合同有效,如果给甲造成损失,由乙承担赔偿责任
C. 甲可以请求人民法院撤销该合同
D. 该合同经甲追认后才有效
[单选题]轮舱过热探测管路安装在:
A.前轮舱和主轮舱的顶板
B.主轮舱的前壁板
C. 主轮舱的后壁板
D.主轮舱的顶板
[单项选择]分部工程的质量由施工单位组织自检合格后,报()。
A. 监理单位
B. 建设单位
C. 质量监督单位
D. 企业质检部门
[单选题]无人机的注册所有者或运营人应将永久邮寄地址的变更、无人机的销售和 等事项通知局方注册处。
A.实验试飞
B.无人机注册证书丢失
C.无人机维修
[单选题]《建设工程安全生产管理条例》规定,设计单位和( )等注册执业人员应当对其设计负责。
A.注册结构工程师
B.注册监理工程师
C.注册建筑师
D.勘察设计注册工程师
[单项选择]Children are______ to have some accidents as they grow up.


A. apparent
B. indispensable
C. bound
D. doubtless
[多选题]发生雨雪冰冻灾害时,其主要危害有( )。
A.易引发道路交通事故、建筑物倒塌以及地质等次生灾害。
B.水、电/气等基础设施破坏,导致城镇大面积停电、停水、停气和通信中断。
C.路面封冻、交通中断,造成车辆、人员严重滞留和拥堵。
D.由于运能不足、企业停产,燃料和物资供应中断,使群众生产生活受到严重影响。
[判断题]砌筑砖墙必须上下错缝,内外搭接,并要求砂浆饱满、厚薄均匀。()

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