热门试题:
[单选题]1.8 对于给定的100个不同业务部门按月汇总的业务数据量,要比较他们的业务量的波动情况,应该使用下面的______指标。
A.平均数
B.中位数
C.标准差
D.最大值
[判断题]民用建筑工程室内空气中甲醛检测,也可用现场法,测量不确定度应≤30%。
[单项选择]器官移植包括()
A. 自体移植
B. 同种移植
C. 异种移植
D. 同种移植、异种移植
E. 自体移植、同种移植及异种移植
[单项选择]在某项健康教育计划执行过程中突发地震,从而影响健康教育的评价效果,这种影响因素属于 ()
A. 测试因素
B. 观察因素
C. 时间因素
D. 回归因素
E. 霍桑效应
[多项选择]治疗羊水过多中,下列正确的是( )
A. 确认胎儿畸形,应立即引产
B. 口服利尿药
C. 人工破膜应快速放水,以缓解症状
D. 慢性羊水过多可继续妊娠
E. 胎儿无畸形,症状严重者可给予高位针刺人工破膜引产
[单选题]有关航空器客、货舱清舱工作,说法错误的是( )。
A.航空器货舱清舱是指在装载货物前,对货舱内可藏匿物品和人的部位进行清理检查
B.航空器客、货舱的清舱工作不仅要在国内航班上进行,还要在国际航班上进行
C.航空器客舱清舱是指在旅客登机前和下机后,对航空器客舱内可藏匿物品和人的部位进行清理检查
D.航空器客舱清舱只在旅客下机后进行
[单项选择] Not many of the elements occur in nature as pure substances, lying around waiting for someone to pick them up. A few do, and it is not surprising that these were known and collected for various uses in societies around the globe as far back as several thousand years B. C. Sulfur is one of those elements. It was known to burn with smelly results and have an odd appearance. Its use was probably confined to religious ceremonies. Carbon was also known since antiquity, because the charred (烧焦的) bones of animals and portions of partially burned trees consist largely of carbon in the form of charcoal. Although we don’’t know all the uses primitive peoples made of charcoal, we do know that it was the key to releasing many other elements from their chemical combination in rocks. For example, if a copper-containing rock was heated in a hot fire with charcoal present, the carbon in the charcoal would combine with the other elements in the rock, leaving free metallic copper. In ways like this
A. It states the main idea of the paragraph.
B. It supports the main idea by providing a reason.
C. It states an idea that is in contrast to the main idea.
D. It supports the main idea by providing an example.
[单项选择]慢性浅表性胃炎的病变特点是()
A. 胃黏膜内多量中性粒细胞浸润
B. 胃黏膜内多量淋巴细胞浸润
C. 胃黏膜腺体减少伴肠上皮化生
D. 被覆上皮增生导致胃黏膜增厚
[多选题]高瓦斯矿井的煤巷、半煤岩巷和有瓦斯涌出的岩巷掘进工作面必须在( )设置甲烷传感器。(0.07分)
A.工作面进风流中
B.工作面
C.工作面回风流中
D.工作面冒落处
[单选题]当正面吊吊具()锁定后方可移动集装箱。
A.超越开关
B.限位开关
C.扭锁
D.控锁
[多项选择]入血分而清热凉血,治疗血热吐衄的药
A. 石膏
B. 桑叶
C. 菊花
D. 栀子
E. 黄芩
[单项选择]某专家对他所在城市的道路的不同土质进行了测验,发现了许多不良土质,并且觉得长此下去会给道路路基的稳定和正常使用造成危害,所以他提倡人们需要了解并熟悉各类不良土质对道路路基的危害及处理方法,以免发生危险。
淤泥和淤泥质土、水下沉积的饱和软黏土具有较高的天然含水量及( )的特点。
A. 小的孔隙比
B. 透水性好
C. 压缩性小
D. 强度低
[单项选择]在库存控制订货点法中,订货点的计算公式为()。
A. 订货点=安全库存量
B. 订货点=最大库存量
C. 订货点=单位时间的库存消耗水平×订货提前期+安全库存量
D. 订货点=单位时间的库存消耗水平×订货提前期+最大库存量
[判断题]平行光线聚焦于近视眼视网膜前
A.正确
B.错误
[多项选择]妊娠期血液系统的变化,正确的有()
A. 血容量增加,呈现生理性贫血
B. 白细胞轻度升高
C. 易发生缺铁性贫血
D. 血液处于高凝状态
E. 血沉加快
[简答题]
What’’s Happening While Sleeping
Sleep is very important to humans. The average person spends 220,000 hours of a lifetime sleeping. Until about thirty years ago, no one knew much about sleep. Then doctors and scientists began doing research in sleep laboratories. They have learned a great deal by studying people as they sleep, but there is still much they don’’t understand.
Scientists study the body characteristics that change during sleep, such as body temperature, brain waves, blood pressure, breathing, and heartbeat. They also study rapid eye movement (REM). These scientists have learned that there is a kind of sleep with REM and another kind with no rapid eye movement (NREM).
NREM is divided into three stages. In stage one, when you start to go to sleep, you have a pleasant floating feeling. A sudden noise can wake you up. In stage two, you sleep more deeply, and a noise will probably not wake you. In stage three, which you reach in less than
[单选题]因事故死亡、重伤人数()内发生变化,导致事故等级变化的,相应改变事故等级。
A.7日
B.8日
C.10日
D.15日
[单选题]受限空间内硫化氢最高允许浓度不得大于( )mg/m3。
A.l0;
B.20;
C.50;
D.l00。
[单项选择]{{B}} Questions 11 to 18 are based on the conversation you have just heard.{{/B}}
A. She will take the nonstop train at 2:15.
B. She will get a bite to eat.
C. She will take the faster train at 2:00.
D. She is not sure which train to take.
[简答题]简述图2-5所示绕线转子异步电动机的起动控制电路的工作过程。
[单选题] 49.非正式沟通渠道不包括()。
A.即时通讯工具QQ
B.办公室桌面面谈
C.手机短信交流
D.一起吃饭聊天
[单项选择]下列不是躯体性腹痛特点的是()
A. 疼痛定位准确
B. 疼痛程度剧烈而持久
C. 可有局部腹肌紧张
D. 体位变化可加重疼痛
E. 常伴自主神经兴奋症状
[单选题] ( )思想政治工作就是实现党的领导,特别是实现政治领导、思想领导的重要途径,是发挥党组织领导核心、政治核心作用的具体抓手,是各级党组织的职责所在、使命所系,是( )和其他一切工作的“生命线”。
A.经济工作
B.思想工作
C.政治工作
D.革命工作
[单选题]下列关于光线对人的作用不正确的是 ( )
A.红外线能被皮肤吸收,使皮肤及深部组织受到温热作用
B.适量的日光照射,使人食欲增加,舒适愉快
C.紫外线有强大的杀菌作用
D.可见光、红外线、紫外线,各种射线都有很强的生物学作用
E.光线对人的心理无作用
[多选题] 目前无线局域网使用的2.4GHz工作频段是ISM频段(工业/科学/医学用频段)中的一段,以下使用了ISM频段的无线技术或设备有:( )。
A.无线鼠标
B.无绳电话
C.蓝牙
D.微波炉
[单选题]甲状腺危象多发生在术后
A.1~2小时
B.4~6小时
C.7~10小时
D.12~36小时
E.48~72小时
[填空题]挤压型地质隧道衬砌宜优先采用( )衬砌。
[不定项选择题]女性,32岁,因甲状腺功能亢进入院,准备择期接受甲状腺大部切除手术治疗。
护士指导该病人在术后当天进温凉流食的目的是
A.促进有效排痰
B.促进胃肠道蠕动
C.预防甲状腺危象
D.避免颈部血管扩张出血
E.及时发现喉返神经损伤
[判断题]在换流站直流控制保护系统上工作。严禁任何未经安全检查和许可的各类网络终端和存储设备接入控制保护系统。
A.正确
B.错误
[多选题]警惕脚踏应设两个工作位即( )脚踏踏面应具有防滑功能。
A.警惕位
B.运行位
C.自由位
D.下踏位
[单选题]病人.男.61岁。3次测得的血压值分别为:160/90mmHgv164/94mmHg170/ 98mmHg。据此可以推断该病人高血压 分级属于( )
A.正常高限
B.轻度高血压
C.中度高血压
D.重度高血压
E临界高血压
[填空题]The all village soon learnt that a large 76.______
sum of money had been lost. Sam Benten, the lo-
cal (当地的) butcher, had been lost his 77.______
wallet while take his savings to the post of- 78.______
fice. Sam was sure that the wallet have been 79.______
found by one of the villagers but it was not
paid to him. Three months passed, and then 80.______
one morning, Sam found out his wallet out- 81.______
side his front door. It had been wrapped up
by newspaper and it contained in haft the 82.______
money he lost, together with a note. which 83.______
said, "a thief, yes, but only 50 percent a 84.______
thief!" Two months later, some much money 85.______
was sent to Sam with another note, "Only 25
percent a thief now !/
[简答题] 当吊笼处于最低位置时,卷筒上的钢丝绳不应少于2圈
[单选题](第四十一条)( )以上(含),除高温适应性训练除外,应停止室外训练。在出汗较多.身体缺水情况下,宜饮用含盐的饮料,及时补充水和盐份,防止中暑。( )
A.30℃
B.32℃
C.35℃
D.38℃
[多选题]管式混合有哪两种形式?( )
A. 管道混合
B. 静态混合器混合
C. 管网混合
[填空题]—N’oubliez pas mon adresse.
—Non, je_____ penserai.