相关试题
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扑救C类火灾应选用干粉、卤代烷、二氧化碳型灭火器。
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有毒气体泄漏现场警戒人员应当佩戴空气呼吸器。
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安全出口处可以设置门槛、台阶，疏散门应向外开启。
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防火卷帘门应具有停电情况下，通过手动拉链或熔断器控制防火卷帘门下降的功能。
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在切断用磁力开关启动的带电设备时，应先断开闸刀，然后再关闭设备电源。
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灭火器压力表指针处在正常位置为黄色区域。
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消防用电设备的电源不应装设漏电保护，当线路发生接地故障时，宜设单项接地报警装置。
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对于聚集于建筑物和地沟内的液化石油气，可打开门窗或地沟盖板，通过自然通风吹散。同时还可采用防爆机械送风进行驱散。
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液氯泄漏后体积迅速扩大，随风或向高处漂移，形成大面积染毒区。
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处置交通事故，应当调派抢险救援车、大型水罐车等特种车辆和侦检、警戒、破拆、救生、牵引、起吊等特种器材，并视情报政府启动应急预案，调动公安、交通、卫生、环保等相关部门及单位救援力量参与处置。
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处置建筑倒塌事故，应当调派抢险救援车、举高车等车辆和生命探测、漏电检测、燃气侦检、救生、破拆、牵引、起吊、支撑等特种器材、设备，并视情报政府启动应急预案，调动建设、公安、卫生、通信、供气、供电、供水等相关部门及单位救援力量参与处置。
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在初起火灾发生时凡是能够用于扑灭火灾的所有工具都可以称为简易灭火工具。
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火灾是在时间而非空间上失去控制的燃烧所造成的灾害。
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一旦出现火情，消防控制室将成为紧急信息汇集、显示、处理的中心，及时、准确地反馈火情的发展过程，正确、迅速地控制各种相关设备，达到疏导和保护人员、控制和扑灭火灾的目的。
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石油气是常见的非易燃易爆气体，主要用于石油化工原料，也可用作燃料。
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液化石油气一般以喷射状泄漏，由液相变为气相，体积迅速缩小，形成大面积危险区。
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液化石油气爆炸下限极低，泄漏后极易与空气形成爆炸性混合物，遇火源发生爆炸或燃烧。
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液化石油气若呈液相沿地面流动，可采用高倍数泡沫覆盖，降低其蒸发速度，缩小气云范围。
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防火分隔物是指能在一定时间内组织火势蔓延，且能把建筑内部空间分隔成托干较小防火空间的物体。常见防火分隔物有防火墙、防火门。防火卷帘、防火水幕带、防火阀和排烟防火阀等。
【判断题】
清理火场时，必须克服麻痹思想，防止发生意外伤害。归队后，立即清点人员和器材。
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进入危险化学品泄漏事故现场时，重危区作业人员必须着重型防化服，轻危区作业人员可以着隔热服。进入易燃、易爆区域还应当着防静电内外衣、裤子、袜子和手套。
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抢险救援力量编成一般以消防站为基本作战单位，以战斗班为基本作战单元。
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在室外使用手提式机械泡沫灭火器时，应选择在下风向喷射。
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消防救援队伍应当建立严格的战备值班制度，保证不间断值班。
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在发生火灾疏散物资时，应先疏散受水、火、烟危险最大的物资。
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二氧化碳灭火系统是通过化学抑制作用来灭火的。
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消防救援队伍应当按计划、有针对性地开展经常性战备教育。
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各级战备值班人员必须坚守岗位，履行职责，做好值班记录并建档保存。
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着消防避火服进入火焰区域时应使用喷雾水实施掩护。
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消防避火服可用于进入火焰区域长时间作业时全身防护。
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油罐发生爆炸后，随即形成不稳定燃烧，造成火势扩大。
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防化防核服在污染区域用过后经清洗可反复使用。
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消防避火服用于接近火焰和化学事故现场防护。
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消防水箱的补水由生活泵供给，严禁消防水箱采用消防水泵补水，利于维持火灾时管网的消防水压。
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扑救金属粉末火灾，一般可用沙土和二氧化碳，但是禁止用水。
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These companies often encounter many ___ impediments to investment.
A. invisible
B. edible
C. feasible
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30 percent of reptiles, birds, and fish are currently ___ with extinction.
A. treated
B. threatened
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They have a stronger ___ of the importance of economic incentives.
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When he opened the door, he used too much force and ___ the key.
A. trailed
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I’m very sorry to have ___ you with so many questions on such an occasion.
A. offended
B. impressive
C. bothered
D. interfered
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It is sometimes difficult for young people from the countryside to ___ well to life in the big city.
A. suit
B. adapt
C. regulate
D. coordination
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Our guide gave us a detailed ___of this painting but we still do not understand.
A. authority
B. interpretation
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D. institution
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If you want to ___ the wood, cut it with the grain, not against it.
A. break
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C. split
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They have a stronger ___ of the importance of economic incentives.
A. appreciation
B. learning
C. conception
D. idea
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I believe I am capable of ___ the political consequences accurately.
A. guessing
B. betting
C. calculating
D. computing
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30 percent of reptiles, birds, and fish are currently ___ with extinction.
A. treated
B. threatened
C. danger
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Workers should occasionally walk around, ___ and avoid prolonged periods at the desk.
A. pull
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These companies often encounter many ___ impediments to investment.
A. invisible
B. edible
C. feasible
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Running a kitchen ___a great deal of discipline and speed.
A. including
B. involving
C. involves
D. composes
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He had an ___ at a restaurant in Greek Street at eight.
A. engagement
B. engage
C. contract
D. promise
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I think I would have died of ___.
A. embarrass
B. embarrassing
C. embarrassed
D. embarrassment
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He saw the publication of this book as an embarrassing invasion of his ___.
A. secret
B. privacy
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The trade imbalance is likely to rise again in 2020. ___ a new set of policy actions will be required soon.
A.
B. ecause B. Nevertheless
C. Hence
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Stratford police refuse to comment ___ whether anyone has been arrested.
A. about
B. on
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The world will be different, and we will have to be prepared to ___ to the change.
A. adopt
B. adapt
C. accustom
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The company has launched a campaign of television ___ and leaflets.
A. commercials
B. commences
C. commerce
D. commercialization
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The general secretary may ___ the president at official ceremonies.
A. present
B. represent
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【单选题】
He ___ her arms behind her back and clipped a pair of handcuffs on her wrists.
A. dragged
B. pulled
C. stretched
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Suppose that when I come back in ten years’ time all these old houses ___ down.
A. will have been pulled
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The picture exhibition bored me to death. I wish I ___ to it.
A. have not gone
B. did not go
C. had not gone
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An investigation was made into the accident ___ fifty people were killed.
A. for that
B. where
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___ with the picture, Mary tore it to pieces.
A. Dissatisfying thoroughly
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C. To dissatisfy thoroughly
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She was so angry that she felt like ___ something at him.
A. to throw
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If you want to know the train schedule, please ___ at the booking office.
A. acquire
B. inquire
C. request
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My brother’s plans are very ___; he wants to master English, French and Spanish before he is sixteen.
A. arbitrary
B. aggressive
C. ambitious
D. abundant
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Housewives who do not go out to work often feel they are not working to their full ___.
A. capacity
B. strength
C. length
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Water and air are ___ to human beings. We cannot live without them.
A. harbor
B. function
C. definite
D. essential
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Our challenge is to ___ those voters and inspire them to join our cause.
A. motion
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Harper was a teacher by ___.
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The doctor gave me a chest X-ray and ___some medicine for me.
A. prescribed
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The list is arranged according to the ___ professions of the audience.
A. resolution
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The government is trying to do something to ___ better understanding between the two countries.
A. raise
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According to the American federal government, residents of Hawaii have the longest life ___ : 77.2 years.
A. rank
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Because of the boring ___, we need to take a vacation every year.
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