热门试题:
[填空题]装备矿井安全监控系统的矿井,主要通风机、局部通风机应设置设备开停传感器,主要风门应设置(),被控设备开关的负荷侧应设置馈电状态传感器。
[单选题]货物列车本务机车在车站调车作业时,无论单机或挂有车辆,与本列的车辆摘挂和软管摘结,均由()负责。
A.调车作业人员
B.列检人员
C.机车乘务人员
D.车辆乘务员
[单项选择]目前中药系统杀虫,防霉采用的气调养护方法是()。
A. 充N2降O2或充CO2降O2
B. 用换气扇换气
C. 充氧气
D. 控制温度
[判断题]布点连线、理脉成文三种方式中,楼梯式较为复杂,思维能力很强、思维品质特别优异的人,才能驾驭此法。
[单选题]调车作业中,电力机车带电进入停电区,造成3人重伤,构成( )事故。
A.一般C类
B.一般D类
C.一般A类
D.一般B类
[单项选择]外国投资者并购境内企业,在下列各项中,投资者不应就所涉情形向商务部和国家工商行政管理部门报告的有( )。
A. 并购一方当事人当年在中国市场营业额超过15亿元人民币
B. 并购一方当事人在中国的市场占有率已经达到20%
C. 并购导致并购一方当事人在中国的市场占有率达到25%
D. 一年内并购国内企业累计超过3个
[单项选择]关于病死及死因不明动物处置办法的禁止性规定,正确的是()
A. 任何个人不得随意处置加工和食用病死或死因不明动物
B. ①任何单位不得随意出售病死或死因不明动物;②不得擅自到疫区采样
C. ①任何单位和个人不得随意处置及出售、转运、加工和食用病死或死因不明动物;②不得随意进行解剖;③不得擅自到疫区采样、分离病原、进行流行病学调查;④不得擅自提供病料和资料
D. ①任何单位不得随意加工和食用病死或死因不明动物;②不得随意进行解剖;③不得提供病料和资料
[单项选择]某人长期服用同一种抗生素,到后期治疗效果大大降低甚至无效,这其中可能的原因是()。
A. 病原菌长期接触同种抗生素,产生适应性突变而抗药
B. 抗生素长期作用于病原体,诱发它发生抗药性突变而抗药
C. 病原菌不断产生各种变异,抗生素起了选择作用,淘汰了敏感菌,留下抗药菌
D. 上述三种原因综合作用的结果
[单选题]1.87客车是在其设计和制造上主要用于载运乘客及其随身行李的汽车,包括驾驶人座位在内座位数超过_______个。
A.5
B.6
C.9
D.19
[单选题]使用灵活温度起飞计算出的假设温度低于平台温度 (TREF)时:
A.可以使用计算出的灵活温度起飞
B.不能使用减推力起飞
[单选题]自助设备内现金不足( )时,必须做好加钞计划。
A.5万
B.6万
C.10万
D.1万
[单选题]根据《关于新形势下党内政治生活的若干准则》,【】是权力正确运行的根本保证,是加强和规范党内政治生活的重要举措。
A.批评与自我批评
B.监督
C.民主集中制
[单选题]下列关于RNA的说法哪项是正确的
A.细胞中只含有rRNA、tRNA、mRNA三种
B.mRNA储存着遗传信息
C.rRNA含有稀有碱基
D.胞液中只有mRNA
E.tRNA是合成蛋白质的场所
[单选题]SITA电报整份电报( )含报头至报尾最长可发( ) 个字符。
A.3800
B.3200
C.2100
D.1800
[单选题]关于1956年中国社会的变化,表述不正确的是()。
A.生产资料所有制形式发生了根本变化
B.中国社会形态发生巨大变化
C.中国社会主要矛盾发生变
D.中国从落后的农业国变为先进的工业国
[单选题]膀胱结核肾盂造影表现为:
A.膀胱挛缩、变小、变形、轮廓不清
B.膀胱内壁凹凸不平,见充盈缺损
C.膀胱扩大
D.膀胱密度不均
E.无改变
[单选题]氯乙烯悬浮聚合反应中,单体自由基不断的加成单体分子,构成( )反应。
A.链引发
B.链增长
C.链转移
D.链终止
[单选题]1428.下列关于局部神经元回路的描述,正确的是
A.A.动物越高等,回路越不发达
B.B.由于轴突短或无轴突,因而突触数量少
C.C.由于回路无极性,所以突触种类多
D.D.所有突触都是化学性突触
E.E.仅能在局部起调节作用
[单选题]生物安全柜开风机的时间是
A.每天12小时
B.每8小时一次
C.每天8小时
D.每4小时一次
E.每天24小时
[判断题](限潜水排污泵)电机在油室内设置泄漏报警电极,当有水进入油室时,通过检测电机电阻值来达到报警目的
A.正确
B.错误
[单选题] 提高谈话教育有效性要了解情况, 确定主题。(), 有的放矢。察言观色, 注意细节。把握节奏, 注意分寸。以理服人, 以情感人。
A. 因人而异
B. 了解他人
C. 侃侃而谈
D. 自我陶醉
[单项选择]He has been plowing through a biography of Lyndon Johnson and a ______ of Henry Kissinger.
A. casualty
B. criteria
C. dissection
D. necessity
[多项选择]在计算人工工日消耗量时,其人工的工日数可( )。
A. 以施工定额的劳动定额为基础确定
B. 采用计时观察法测定
C. 以现场测定法来测定
D. 采用工时规范来确定
E. 采用经验数据来确定
[判断题]作业人员可以自己移动或拆除遮栏(围栏)。——
A.正确
B.错误
[单选题]油浸(自然循环)风冷和干式风冷变压器,风扇停止工作时,允许的( )和运行时间, 应按制造厂的规定。
A.负载
B.电压
C.频率
D.油温
[单选题]高位水池排污阀排至( )。
A.消防水池
B.环水水池
C.东沟事故池
D.西沟
[单选题]缺铁性贫血时红细胞呈现:
A.小细胞低色素性贫血
B.正细胞性贫血
C.大细胞性贫血
D.镰状红细胞
E.球形红细胞
[简答题]Cell phones may help busy executives keep in constant touch with important business associates, but they may also increase their risk of high blood pressure, preliminary research suggests. A study of 10 German mobile phone users found that when they switched on their phone, their blood pressure shot up by 5 to l0 millimeters of mercury, researchers reported in this week’s issue of the international medical journal, The Lancet. Exactly how cell-phone use can lead to increases in blood pressure is unclear, but researchers speculate that the electromagnetic fields emitted by phones may somehow boost pressure. While the blood pressure increases found in the new study are small, they may be detrimental to people who already suffer from hypertension, researchers led by S. Braune of the Neurologische Universitateklinik in Freiburg, Germany, explained.
[单项选择]My writing in my late teens and early adulthood was fashioned after the U.S. short stories and poetry taught in the high schools of the 1940s and 1950s, but by the 1960s, after I had gone to college and dropped out and served in the military, I began to develop topics and themes from my Native American background. The experience in my village of Deetziyamah and Acoma Pueblo was readily accessible. My mother was a potter of the well-known Acoma clayware. My father carved figures from wood and did beadwork. There was always some kind of artistic endeavor that Native American people, set themselves to, although they did not necessarily articulate it as "Art" in the sense of Western civilization. When I turned my attention to my own heritage, I did so because this was my identity, and I wanted to write about what that meant. My desire was to write about the integrity and dignity of a Native American identity, and at the same time I wanted to look at what this was within the context of an A
A. He realized that he had not been invited to the event as a representative of Native Americans.
B. He remembered the sacrifices that his ancestors had made for the privilege of going there, even if only to be ignored.
C. He was eager to read his poetry to an audience of other poets and literary critics.
D. He wanted his writing and the writing of other Native American men and women to take on a more political ton
[判断题]()故障安全控制系统(FSC)根据不同的安全性.可用性的需要可以组成6种结构。
A.正确
B.错误
[单项选择]( )不是影响股票投资价值的外部因素。
A. 行业因素
B. 市场因素
C. 宏观经济因素
D. 减资
[判断题]使用射钉枪、压接枪等爆发性工具时,除严格遵守说明书的规定外,还应遵守爆破的有关规定
A.正确
B.错误
[判断题] 峰谷分时电价策略,是指将每天24时,分为低谷时段,高峰时段2个时段。
A.正确
B.错误
[多选题]顾客到店主述症状中,哪些表现我们应当提示顾客关注自己的血糖
A.女性患者会有反复的妇科炎症
B.顾客主述最近视物模糊
C.男性顾客有反复的尿路感染
D.破溃的伤口不易愈合
[单选题]不锈复合钢板装配时,必须以( )为基准对齐。
A.基层钢
B.过渡层钢
C.复层钢
[单选题]属于医疗保险给付保险金条件的是()。
A.客观病历记录
B.依据诊断结果
C.约定疾病的发生
D.约定医疗行为的发生