热门试题:
[单选题]工作负责人(工作班成员)上年度执行工作票数量少于( )份时工作任务系数为1.0。
A.10
B.20
C.30
D.40
[单选题]进行接触粉尘及有毒、易燃、易爆物品作业,高处作业,以及使用电器、机械作业等必须按规定使用( )。
A.防护口罩
B.劳动保护用品
C.防护服
D.安全用品
[不定项选择题]营业网点临柜办理业务录入客户信息时,应确保( )与投资者本人的信息一致性。
A.中国结算系统
B.公司系统
C.书面材料
[多选题]有关卵巢肿瘤,下列说法正确的是:( )
A.实性肿瘤,恶性者居多
B.腹膜黏液瘤预后较好
C.巨大卵巢囊肿与腹水的鉴别,超声诊断是有用的
D.卵泡膜细胞瘤多为恶性
[单选题]在访问Internet过程中,为了防止Web页面中恶意代码对自己计算机的损害,可以采取以下哪种防范措施()
A.利用SSL访问Web站点
B.将要访问的Web站点按其可信度分配到浏览器的不同安全区域
C.在浏览器中安装数字证书
D.要求Web站点安装数字证书
[填空题]受电弓减压阀的设定值是:();安全阀的设定值是: 4.5 bar。
[多项选择]纳税人向原税务登记机关如实提供下列证件、资料,申报办理变更税务登记( )。
A. 工商登记变更表
B. 工商营业执照
C. 纳税人变更登记内容的有关证明文件
D. 税务机关发放的原税务登记证件
E. 原始凭证
[单项选择]在下列各项中,不属于费用特征的是( )。
A. 导致企业所有者权益的增加
B. 导致企业资产的减少
C. 导致企业负债的增加
D. 在企业日常活动中发生
[单选题]在自动闭塞区段,当接车进路信号机不能使用时,列车凭()越过。
A.路票
B.绿色许可证
C.引导信号
[单项选择]四川、重庆等地的传统名小吃酸辣粉的主粉之一是()
A. 小麦
B. 红薯
C. 黄豆
D. 土豆
[多选题]锅炉设备运到后对设备进行目测检查项目包括( )。
A.A.仪表、阀门等器件是否有遗失和损坏
B.B.燃烧器是否折断或变形
C.C.报警铃是否好用
D.D.燃烧是否正常
[判断题]按自动闭塞法运行时,列车不准退行。( )
A.正确
B.错误
[填空题]在屠格涅夫的长篇小说中,一般认为前四部即:()、()、()和《父与子》代表了作家创作的最高成就。
[判断题]进入新发展阶段、贯彻新发展理念、构建新发展格局,是由我国经济社会发展的理论逻辑、历史逻辑、现实逻辑决定的,三者紧密关联。
A.正确
B.错误
[判断题]空调乘务人员应随身携带配电室门钥匙,空调设施严禁使用手动制冷。
A.正确
B.错误
[单选题]SIRS患者CARS占优势,应采用( )
A. 炎症介质拮抗剂治疗
B. 免疫刺激治疗
C. 抗感染治疗
D. 亚低温治疗
E. 放射治疗
[单选题]PLC与继电器控制系统比较,下列说法不正确的是 。
A.PLC的控制功能是通过编程来实现的
B.PLC对生产工艺过程变更的适应性强
C.PLC的可靠性高.寿命长,可扩展性好
D.PLC的控制速度慢,靠微处理器实现
[单项选择]患者,女性,31岁。6天前足月经阴道分娩一男婴,体重4250g,4天前出现不能控制的阴道排液。不恰当的处理是()
A. 立即行修补术
B. 留置导尿管
C. 预防性应用抗生素
D. 尿管至少保留14天
E. 行高锰酸钾坐浴
[不定项选择题]共用题干
第二篇
Caffeine
Caffeine is probably the most widely used drug in the world.Humans have been consuming caffeine for
hundreds of years,primarily in the form of coffee,tea,and cocoa. Habitual coffee and tea drinkers had long
been observed to have a lower incidence of non-melanoma(黑色素瘤)skin cancers , although no one knew
why.A recent study found that caffeine affects skin cells damaged by ultraviolet radiation,a main cause of
skin cancer. Caffeine interferes with a protein that cancerous cells need to survive,leaving the damaged cells
to die before they become cancerous. Drinking caffeinated coffee has also been associated with a decreased
incidence of endometrial(子宫内膜的)cancer-that is , cancer of the cells lining the uterus. The strongest
effect appears to be in overweight women,who are at greatest risk for the disease.Researchers believe blood
sugar,fat cells,and estrogen(雌性激素)may play a role. Although the mechanism remains unknown,peo-
pie who drink more than two cups of coffee or tea a day reportedly have about half the risk of developing
chronic liver disease as those who drink less than one cup of coffee daily;caffeinated coffee has also been as-
sociated with lowered risk of cirrhosis(肝硬化)and liver cancer.
While many of caffeine's undesirable effects,such as elevated heart rate and blood pressure,are brief,
some short-term benefits,including pain relief,increased alertness,and increased physical endurance,have
also been attributed to caffeine.As a component of numerous over-the-counter diet pills and pain relievers,
caffeine increases their effectiveness and helps the body absorb them more quickly. By constricting(收缩)
blood vessels in the brain , it can alleviate headaches一even migraines(偏头痛)一and can help counter the
drowsiness(眩晕)caused by antihistamines(抗组胺药).
Caffeine does not alter the need for sleep,but it does offer a temporary solution to fatigue for people who
need to stay alert. Research has shown that sleep-deprived individuals who consumed caffeine had improved
memory and reasoning abilities,at least in the short term. Studies of runners and cyclists have shown that
caffeine can improve their stamina一hence its addition to energy-boosting sports drinks.
People who consume a lot of caffeine regularly may develop temporary withdrawal symptoms,headache
being the most common,if they quit or cut back on it abruptly. Fortunately,these symptoms last only a day
or two in most cases.Individuals who are more sensitive to the stimulatory side effects of caffeine may want to
avoid it,but most doctors agree that the equivalent of three cups of coffee a day does not harm healthy
people.There is no medical basis to give up daily caffeine and many reasons to include a moderate amount in
one's diet.
Drinking coffee or tea may help_________.
A.lower the incidence of being overweight
B.lower the incidence of non-melanoma skin cancer
C.increase the incidence of endometrial cancer
D.increase the incidence of liver cancer
[单选题]通过鼻饲法可为病人灌人饮料,其饮料温度应为( )
A.36~38℃
B.38 ~ 40℃
C.39 ~41℃
D.40~42℃
E.42 ~43℃
[单选题]紧急公文或者重要公文应当由()负责催办。
A.专人
B.签收人
C.承办人
D.转办人
[单选题]烟叶生长发育过程中,生理成熟期的主要特点是( )。
A. 叶组织细胞旺盛分裂,细胞数目迅速增加
B. 烟叶生长速度明显加快
C. 叶内干物质积累最多
D. 叶内物质达到协调
[判断题]计算关联自然人与本行的交易余额时,其近亲属与本行的交易应当合并计算
A.正确
B.错误
[单选题] 火力发电厂煤耗是以标准煤为基准,其发热量规定为( )KJ/Kg。
A. 20934
B. 29271.2
C. 27000
D. 12560
[单选题]单选题)安全帽受到较大冲击后,无论是否发现帽壳有明显的断裂纹或变形都应1.)。
A.修理后使用
B.看情况使用
C.停止使用
[多项选择]关于Windows2000复选框的说法,正确的是()
A. 在一组选项中可以选一项
B. 在一组中不能全选
C. 在一组选项中可以全选
D. 在一组选项中可以一项都不选
[多项选择]按照自身交易的方法及特点金融衍生工具可分为()。
A. 金融远期合约
B. 结构化金融衍生工具
C. 金融期货
D. 金融互换
[单项选择]以下哪项不是抑郁症的生物学特征?()
A. 精力明显减退
B. 失眠、早醒
C. 无原因的持续疲乏感
D. 出汗
E. 食欲和性欲减退
[单项选择]According to the passage, the smart highway technology is aimed to______
A. deploy sophisticated facilities on the interstate highways
B. provide passenger vehicles with a variety of services
C. optimize the highway capabilities
D. improve communication between driver and the traffic monitors
[单项选择]根据《生活饮用水卫生监督管理办法》第十一条的规定,生活饮用水供水单位直接从事供、管水的人员应每()进行一次健康检查。
A. 半年
B. 一年
C. 两年
D. 三年
[单选题]动车组空气弹簧故障时,随车机械师应通知司机限速要求。CRH5型限速( )km/h。
A.120
B.160
C.100
D.80
[判断题]消防头盔由帽壳、佩戴装置、面罩、披肩、下颏带等主要部件组成。( )
A.正确
B.错误
[单选题]Among the following statements, ( )
is correct.
A.
As WCDMA sysetms
use 2.6 GHz
band, the first
Fresnel zone has
no impact on
their signal
propagation.
B.
The Doppler
effect has
more impact on
narrowband
wireless
systems than
wideband
wirless
systems.
C.
The electric
field
probability
density
distribution
functions of
fast fading
and slow
fading fit the
Rayleigh
distribution.
D.
None of the
above statement
is correct.
[简答题]《消费者权益保护法》规定了消费者有哪九项权利:(消保维权岗位)
[单项选择]下列关于必须进行招标项目的说法中,错误的是()。
A. 《招标投标法》原则上规定了必须进行招标项目的范围
B. 必须进行招标项目就是必须公开招标的项目
C. 使用国有资金投资的项目属于必须进行招标项目
D. 不同类型项目必须进行招标的具体范围是不同的