热门试题:
[判断题]110V直流系统工作充电器故障时短时由蓄电池供电,如果工作充电器长时间故障,则应投入联络开关由另一段母线供电。( )
A.正确
B.错误
[单选题]司机在整备作业过程中,发现列车有故障时,应第一时间报告,并按其指示执行。
A.派班员
B.信号楼值班员
C.车场调度
D.检修调度
[单选题]接触网第二种工作票填写要求:所有作业组成员安全等级应符合( )作业的要求。
A.间接带电
B.停电
C.远离带电
D.直接带电
[单项选择]在维生素C的负荷试验中,受试者口服维生素C500mg,收集4h尿测定抗坏血酸的排出总量,若()。
A. >20mg为正常,<3mg为缺乏
B. >100mg为正常,<3mg为缺乏
C. >10mg为正常,<3mg为缺乏
D. >30mg为正常,<10mg为缺乏
E. >50mg为正常,<6mg为缺乏
[单选题]巴拿马位于( ),是世界上第一个美国以外使用美元作为法定货币的国家。
A.亚洲
B.欧洲
C.美洲
D.大洋洲
[判断题]( )发生钻具断落井下事故时,转盘扭矩减小,悬重下降,泵压下降。
A.正确
B.错误
[单项选择]男,51岁,肝硬化患者,有腹水。不规律服用利尿剂治疗,两天来出现嗜睡。体检:轻度黄疸,测血钠120mmol/L,血钾2.6mmol/L,氯化物92mmol/L,BUN10mmol/L,血pH7.5。下列哪项体征对该例诊断有特征性意义()
A. 肌张力增强
B. 腱反射亢进
C. 扑翼震颤阳性
D. 腹壁反射消失
E. 嗜睡
[判断题] 驾驶员在运营中可以穿背心和拖鞋开车。( )
A.正确
B.错误
[多选题]车站现场接收到乘客事务后,应遵循乘客事务处理原则妥善处理,并做好相关记录如现场接收到的乘客事务信息有关( ),立即按相关流程上报并报服务热线备案
A.社会关注热点
B.
敏感问题
C.可能引发负面舆论
D.具有公关危机苗头倾向
[单选题](单选题)因生产安全事故受到损害的从业人员,除依法享有( )外,依照有关民事法律尚有获得赔偿权利的,有权提出赔偿要求。
A.工伤社会保险
B.医疗保险
C.失业保险
D.养老保险
[单选题]“train coupled(列车连挂)”回路监视一列车的所有车厢的( )。在列车通电后直接关闭该回路。随后,列车线路、其他监视回路、控制电路和数个其他装置和系统得电/激活。
A.连挂和电气连接
B.牵引
C.制动
D.110V电源
[单项选择]按照“先进先出”组织数据的数据结构是( )。
A. 队列
B. 栈
C. 双向链表
D. 二叉树
[单选题]中国旅游资源丰富,目前,中国已形成世界上规模最大、增速最快、潜力最强的旅游市场。下列各项,不属于中国特色旅游资源的一项是( )。
A.景色秀丽的西湖风景区
B.一年一度的蒙古那达慕大会
C.享誉世界的各地特色美食
D.冬暖夏凉的气候特点
[判断题]车站发现液化气体罐车无人押运或达不到押运人数时,应立即甩下,并用电报通知托运人速派人解决。( )
A.正确
B.错误
[单项选择]下列不符合综合布线产品选择原则的是()。
A. 选择的线缆、接插件、电气设备应具有良好的物理和电气性能,而且价格适中
B. 设计、选择的系统应满足用户在现在和未来10至15年内对通信线路的要求
C. 有统一标识,方便配线、跳线
D. 选择目前市场最优产品
[单项选择]阳黄热生重于湿证的代表方()。
A. 茵陈蒿汤
B. 犀角散
C. 茵陈五苓散
D. 大柴胡汤
E. 黄连解毒汤
[填空题]数据库保护分为:安全性控制、 【5】 、并发性控制和数据的恢复。
[单选题] 鹤管应插入距罐车底部不高于( )处并注意控制流速。
A.300mm
B.250mm
C.200mm
D.150mm
[单选题]在( )区段,一个区间由轨道电路划分为若干闭塞分区。
A.半自动闭塞
B.自动闭塞或半自动闭塞
C.自动闭塞
D.自动闭塞和半自动闭塞
[单选题]客户柯纤翊通过某门店购买了一套东原长岛的商品房,该住房建筑面积100㎡,套内建筑面积85㎡,套内使用面积为78㎡,套内阳台建筑面积为5㎡。则该套住宅的得房率为( )。
A.73%
B.78%
C.80%
D.85%
[单项选择]中期结核性脑膜炎的临床表现应除外()
A. 头痛,喷射性呕吐,脑膜刺激征明显
B. 感觉过敏,意识模糊或烦躁不安
C. 皮肤红色划纹征阳性
D. 不侵犯面神经
E. 婴幼儿脑膜刺激征不明显,仅以前囟膨隆为特征
[判断题]高石灰钻井液和一般石灰钻井液在高温时易发生固化,使钻井液变稠,失去流动性。
A.正确
B.错误
[单项选择]男性,45岁,胃癌根治术后6h出现顽固性呃逆,采用二氧化碳重复吸入、兴奋迷走神经、穴位注射和哌甲酯(利他林)和氟哌啶肌注均无效,患者无法进食和睡眠,还有切口裂开的危险。该患者行膈神经阻滞时可能出现的并发症不包括下列哪项()
A. 全脊髓麻醉
B. 刺伤血管
C. 气胸
D. 喉返神经麻痹和臂丛阻滞
E. 霍纳综合征
[多选题]隧道火灾处置战术要点( )。
A.隧道火灾发生时,应遵循“救人第一”指导思想
B.火情侦查
C.组织灭火
D.物资转移
[简答题]《普速铁路工务安全规则》规定,当列车允许速度120km/h<vmax≤160km/h时,本线来车作业人员应不小于( )下道完毕。
[单选题]( )负责市级、县级安全生产监督管理部门的安全生产监察员的培训工作。
A. 国家局
B. 省级安全生产监督管理部门
C. 省级人民政府
D. 县级人民政府
[单选题]胶接绝缘失效进行永久处理时,应严格掌握轨温、胶接绝缘钢轨的长度和预留焊缝,使修复后无缝线路( )不变。
A.锁定轨温
B.焊缝位置
C.钢轨长度
D.拉力系数
[多项选择]根据我国《劳动法》关于劳动争议的规定,下列哪些说法是错误的?
A. 企业与职工就劳动争议达成和解协议即具有法律效力,任何一方不得再申请仲裁或诉讼
B. 劳动争议发生后6个月内,企业或者职工任何一方均可依据仲裁协议申请仲裁
C. 劳动争议发生后,当事人只能先向劳动争议仲裁委员会申请仲裁,不能直接向人民法院提起诉讼
D. 劳动争议仲裁裁决书自送达之日起即发生法律效力
[单项选择]Some Unusual Celebrations
Some holidays are well-known all around the world. Among them are New Year’s Eve
celebrations. Also common are days in honor of love and friendship, like Valentine’s Day. Each country has its own special holidays, too, often to mark important events in its schools, banks, and governments offices all close on days like these, ____(46). A few of them are really very strange.
Of course, they are not strange to the people who celebrate them. Perhaps that is because the celebrations have long traditions. Consider April Fool’s Day, for example. No one knows when or why it began. Today it is celebrated in many countries—France, England and Australia, among others. On this day, people play practical jokes ____(47). The ones who laugh are the ones playing
the jokes. The people they got angry. Does celebrating this day make sense to you
Day in Poland seems strange, too. On this day, it is traditional for boys to over the heads of girls. Here is the strangest part.
[简答题]过了三天她才想起把雨衣忘在语言实验室了。
[判断题]手抬机动消防泵一般由汽油机、单级离心泵、引水装置、手抬框架、进水部件、出水部件等组成。( )(易)
A.正确
B.错误
[单选题]凡未办理验交的线路、桥隧等设备,由( )负责巡查养护,保证行车安全。
A.设备管理单位
B.施工单位
C.设备管理单位和施工单
D.施工完成后24h自行交由设备管理单位
[不定项选择题]共用题干
Germs(细菌)on Banknotes
People in different countries use different types of money:yuan in China,pesos in Mexico,pounds in the United Kingdom,dollars in the United States,Australia and New Zeal-and. They may use different currencies,but these countries,and probably all countries,still have one thing in______(1):germs on the banknotes.
Scientists have been studying the germs on money for well over 100 years. At the turn of the 20th______(2),some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency______(3)one country. In a new study,Frank Vriesekoop and other researchers compared the germ populations found on bills of different______(4).
Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the stud-y,which compared the germ populations found on money______(5)from 10 nations. The scientists studied 1,280 banknotes in total;all came from places where people buy food,like supermarkets,street vendors and cafes,______(6)those businesses often rely on cash.
Overall,the Australian dollars hosted the fewest live bacteria一no more than 10 per square centimeter. Chinese yuan had the______(7)about 100 per square centimeter. Most of the germs on money probably would not cause harm.
What we call“paper money”_________(8)isn't made from paper. The U. S. dollar,for ex- ample,is printed on fabric that is mostly cotton. Different countries may use different______(9)to print their money. Some of the currencies studied by Vriesekoop and his team,such as the American dollar,were made from cotton. Others were made from polymers.
The three______(10)with the lowest numbers of bacteria were all printed on poly-mers. They included the Australian dollar,the New Zealand dollar and some Mexican pesos.
The______(11)currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This______(12)suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand______(13)germs live on, mon-ey—and whether or not we need to be concerned. Vriesekoop is now starting a study that will______(14)the amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds,the fact remains:Paper money______(15)germs. We should wash our hands after touching it;After all,you never know where your money's been. Or what's living on it.
10._________
A.cheques
B.currencies
C.tickets
D.notebooks
[单选题]皮疹为全身皮肤弥漫性发红,广泛性密集均匀的红色细小丘疹,最可能的诊断是
A.幼儿急诊
B.水痘
C.猩红热
D.麻疹
E.风疹
[判断题]机械化、半自动化、自动化驼峰调车场,应采用道岔控制集中。
A.正确
B.错误
[多项选择]伤寒复发是潜伏在体内伤寒杆菌再次侵入血流,其潜伏的部位是()
A. 胆囊
B. 肝脏
C. 肠系膜淋巴结坏死中心
D. 巨噬细胞
E. 骨髓
[多选题]消防救援人员不得变卖、拆改制式服装,不得将制式服装和标志服饰( )给国家综合性消防救援队伍以外的单位和人员。
A.出借
B.赠送
C.邮寄
D.转让