热门试题:
[判断题]《铁路旅客运输规程》规定,旅客开始旅行后不能退票。但如因伤、病不能继续旅行时,经站、车证实,可退还已收票价与已乘区间票价差额,核收退票费。已乘区间不足起码里程时,按起码里程计算;同行人同样办理。
A.正确
B.错误
[判断题]鼓励采用HACCP对生产过程进行食品安全控制。( )
A.正确
B.错误
[单项选择]Imagine a world in which children would be the rulers and could decide not only the outcome of each and every occurrence, but also dictate the very structure and form of the environment. In this world, a child’s wildest thoughts would become reality, limited only by the extent of his or her imagination.
While such a world might sound both fantastic and frightening, at least from a logical, adult perspective, it does exist. What’s more, it has been in existence for some time and is populated by hundreds of thousands of children who spend hours within its boundaries experimenting and learning. This world is not real. at least not in the traditional sense, but exists within a computer and is generated by an educational programming language called LOGO. Unlike other computer languages and programs that are designed to test children and provide applications that formally dispense information, LOGO allows children, even preschool children, to be in total control. Children teach the comp
A. the limits of their imagination
B. the structure and form of the environment
C. the reality of life
D. the rules of the society
[判断题]孙中山喊出了“振兴中华”的时代最强音。
A.正确
B.错误
[判断题]配电站、开闭所、箱式变电站的门应朝向内开。
A.正确
B.错误
[判断题]固定资产确认的时间标准是使用时间在一年以上。
[单选题]高炉冷却水的水速应使悬浮物不易沉淀,不发生局部沸腾,对水速要求()。
A.0.8~1.5m/s
B.1.5~2m/s
C.2m/s以上
[多项选择]炸药爆炸充分反应后的产物为()。
A. 水
B. 二氧化碳
C. 氮气
D. 一氧化碳
[判断题]学生回家或返校,全程旅行中乘坐其他交通工具时,可分段购买学生票。()
[单选题] 现况调查对象的选择原则应当是:
A.从人群中选择有某病与无某病者
B.从人群中选择暴露与非暴露某因素者
C.从医院和人群中随机抽样选择患某病者
D.从人群中随机抽样选择部分人群
E.从人群中随机抽样选择部分健康人群
[单选题]伤寒小结的主要组成细胞是( )。
A.类上皮细胞
B.巨噬细胞
C.多核巨细胞
D.浆细胞
E.淋巴细胞
[单项选择]仪器房应摆放平稳,门口应平坦并不得堆放杂物。房体应接地线,接地线桩应()。
A. 大于0.1m
B. 大于0.3m
C. 大于0.5m
D. 没有限制
[配伍题]右心室肥大的心电图表现|
A. 肺型P波
B. 肢导低电压
C. 右束支传导阻滞
D. V1、V2R/S>1
E. V1、V2ST-T改变
[单项选择](2006)在Windows操作下,要获取屏幕上的显示内容,把它复制在剪贴板上可以通过下列哪个按键来实现?()
A. Home
B. Ctrl+C
C. Shift+C
D. PrintScreen
[单项选择]驰张筛处理能力()(t/h)
A. 500
B. 200
C. 40
D. 150
[单项选择]
All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds mankind. Each year it (21) men with two hundred million tons of grain and (22) ten million tons of wood.
Coal, oil natural gas, and all other (23) are stored-up energy from the sun. It was collected by the plants as carbon compounds and stored (24) ago.
Even waterpower comes from the sun. Water (25) into vapor by the sun falls as rain. It runs (26) the mountains and is converted to electric power.
Light transmits only the energy (27) comes from the sun’ s outer layers, and (28) of this energy that is directed toward the earth never arrives. About (29) of it is absorbed by the atmosphere of the earth. In (30) ,the earth itself gets only one half-billionth of the Sun’ s entire output of rediant energy.
30()
A. fuels
B. solids
C. soils
D. materials
[判断题]计量二次回路进行接线相关试验时,试验人员应具有试验专业知识,充分了解被试设备和所用试验设备、仪器的性能。
A.正确
B.错误
[多项选择]下列疾病哪些最适合手术治疗()
A. 食管囊肿
B. 良性畸胎瘤
C. 淋巴肉瘤
D. 神经纤维瘤
E. 胸腺瘤
[判断题]高速铁路供用电设备分界.高铁车站供电以车站综合变电所低压配电柜出线端子(不含端子)为界。(1分)
A.正确
B.错误
[填空题]数字同步网的同步方式可分为()、主从同步和()等三种方式,其中主从同步方式又可分为()和()
[判断题]25kV带电绝缘子接地侧裙边距接地体间隙正常情况下最小值为100mm。( )
A.正确
B.错误
[单选题]患者,女,36岁。颈前弥漫性肿大,疑为甲亢。下列检查对诊断意义不大的是()。
A.基础代谢率
B.甲状腺摄131I率测定
C.声带检查
D.颈部X线
E.测血肌酐
[判断题]磁力搅拌器适用于混合搅拌较稀的液体物质。( )
A.正确
B.错误
[判断题]当设备出现故障时,由仓储组操作人员填写《设备故障申请、维修单》,报设备动力部维修,
A.正确
B.错误
[判断题]乙烯装置所用助剂液氨在受热后瓶内压力增大,有爆炸危险,爆炸极限15.7%~27.4%( )
A.正确
B.错误
[多选题]U31网管安装时计算机必须具备哪些条件
A.正确地安装了操作系统、驱动程序及其补丁
B.安装必要的防毒软件以保护计算机不受病毒骚扰
C.禁止安装恶意软件或者类似的不良软件以减少计算机故障的概率
D.禁止启动其它可能会占用大量系统资源的应用软件
E.计算机的配置满足要求
[单选题]电缆线路加上额定电流后开始温度升高很快,一段时间后,温度( )。
A.很快降低
B.缓慢降低
C.缓慢升高
D.缓慢升高至某一稳定值
[单项选择]心病共有症状是:
A. 失眠
B. 心悸
C. 心痛
D. 心烦
E. 谵语
[多选题]正压式消防空气呼吸器的使用方法( )(易)
A.检查气瓶压力及系统气密性。逆时针方向旋转瓶阀手轮至少2圈。
B.将气瓶底部朝向自己,然后展开肩带,并将其分别置于气瓶两边。两手同时抓住背架体两侧,将呼吸器举过头顶。同时,两肘内贴近身体,身体稍微前倾,使呼吸器自然滑落于背部,同时确保肩带环顺着手臂滑落在肩膀上。然后,站直身体,向下拉下肩带,将呼吸器调整到舒适的位置,使臀部承重。
C.将肩带上的雄腰扣插入雌腰扣内,然后将腰带左右两侧的伸出端同时向侧后方拉动,将腰带收紧。检查面罩组件,戴上面罩,检查面罩气密性。
D.打开瓶阀,逆时针方向旋转瓶阀手轮至少2圈。
E.使用结束后,卸下面罩,关闭供气阀。
[判断题]应急救援活动中,确保各类安全风险处于可控状态是现场指挥员的重要职责。( )
A.正确
B.错误
[单项选择]下列何者不属十八反内容()。
A. 附子反川贝母
B. 藜芦反辛夷
C. 甘草反甘遂
D. 乌头反白及
E. 乌头反天花粉
[单选题]患者男,21岁,两个月来多次撞向汽车轮胎,他解释说这样做是为了投胎,重新做人。此患者症状属于 (1分.)
A.幻想
B.迷信
C.夸大妄想
D.特殊意义妄想
E.病理性象征性思维