更多“脊柱与脊髓伤伤员在无担架搬运时可采取拉车式搬运”相关的问题
金属钠可以储存在下列（）物质中。
A . A、水
B . B、酒精
C . C、棕色瓶
D . D、煤油
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Directions: There are five reading passages in this part. Each passage is followed by five questions. For each question there are four suggested answers marked A, B, C and D. Choose the best answer and blacken the corresponding letter on the answer sheet.Passage One Early in November 1965, New York was blacked out by an electricity failure (停电). The Mayor promised that it would not happen again. Pessimists (悲观主义者) were certain that it would happen again within five years. In July 1977, there was a repeat performance which produced a serious disorder throughout the city. At that time the city was in one of its worst heat waves. In 1965, there was little crime during the darkness, and fewer than a hundred people were arrested. In 1977, hundreds of stores were broken into and looted (劫掠). Nearly 4,000 people were arrested but far more disappeared into the darkness of the night. The number of policeman available was far from enough and some looters even carry guns. Hospitals had to treat hundreds of people cut by glass from shop windows. Banks and most business remained closed the next day. The blackout started at 9:30 P.M., when lightning hit and knocked out supply cables. Many stores were thus caught by surprise. For twenty-four hours, New York realized how helpless it was without electricity.
A．The police could not see them in the dark.
B．Policemen did not have guns.
C．They could hide in the shop.
D．There were not enough policemen to catch them all.
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\t读下图，回答下列问题。\t简述当地震波到达B界面时，发生的变化是横波（），纵波速度（）。
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高血压是由于心输出量和总外周阻力关系紊乱导致血流动力学异常，引起的以动脉收缩压和(或)舒张压持续增高为主要表现的临床综合征。()
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二氢叶酸还原酶的作用是
A．副反应
B．质反应
C．量反应
D．停药反应
E．变态反应
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問題３ （ ）に入れるのに最もよいものを1234から一つえらびなさい。
A．最大
B．最新
C．最中
D．最多
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A . HAcB . Na2CO3C . KHC8H4O4D . NH3·H2O
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怎样认识“有什么样的受众，就有什么样的媒体”和“有什么样的媒体，就有什么样的受众”？
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当需要访问堆栈中的数据时，SP的值减去这的（）偏移量就是被访问的数据的地址。
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不同类型文化因素通过不同途径影响人群健康，以下哪项是错误的
A．智能文化影响人群生活环境
B．智能文化影响人群劳动条件
C．规范文化支配人群行为生活方式
D．思想文化影响人们的心理过程和精神生活
E．规范文化影响人们的心理过程和精神生活
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分段器是一种与（）上级开关设备相配合的开关设备。
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笼型异步电动机的降压启动，适用于（）。
\tA、重载
\tB、空载
\tC、轻载
\tD、对负载无要求
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某6层钢筋混凝土框架结构，其计算简图如图7-27所示。边跨梁、中间跨梁、边柱及中柱各自的线刚度，依次分别为ib1、ib2、ic1和ic2（单位为10N·mm），且在各层之间不变。采用D值法计算在图示水平荷载作用下的框架内力，假定2层中柱的侧移刚度（抗推刚度）D2中＝2.108×12×10／hkN／mm（式中h为楼层层高），且已求出用于确定2层边柱侧移刚度D2边的刚度修正系数aD2边＝0.38，试问，第2层每个边柱分配的剪力V边（kN），与下列何项数值最为接近？（）
A.0.7P
B.1.4P
C.1.9P
D.2.8P
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在个案社会工作的理论模式中，有一种理论模式带有主动、导向和教导式的特点，很易被东方人接受。请问这一模式是（）
A.理性情绪治疗法
B.现实治疗法
C.结构家庭治疗
D.联合家庭治疗
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