热门试题:
[单选题]"以小人之心度君子之腹"的故事是何种心理机制的写照( )。
A. 合理化
B. 投射
C. 否认
D. 压抑
E. 转移
[多选题]网络运营者应当制定网络安全事件应急预案,及时处置( )安全风险,在发生危害网络安全的事件时,立即启动应急预案,采取相应的补救措施,并按照规定向有关主管部门报告。
A.系统漏洞
B.网络攻击
C.网络侵入
D.计算机病毒
[单选题]IFN-γ( )(1.18分)
A.与IFN-α一样作用于相同的受体
B.不是在接触抗原后产生
C.有免疫调节作用
D.不是由T细胞产生的
E.由所有的T细胞亚类产生
[单选题] (单选题)某人活泼好动、反应迅速、灵活多变、注意力容易转移,他是属于哪种气质类型?
A. 胆汁质
B. 多血质
C. 粘液质
D. 抑郁质
[单选题]下列软膏基质中释药穿逢吸收最好的是
A.羊毛脂
B.硅油
C.乳剂型基质
D.植物油
E.蜂蜡
[单选题] 终止医师执业活动几年后,要依照规定重新注册( )
A.1年
B.2年
C.3年
D.5年
E.半年
[单项选择]铲斗装载机属于()工作机构。
A. 上取式
B. 下取式
C. 侧取式
D. 底取式
[单选题]固定动火作业区,每()进行一次评估,如果不具备固定动火作业条件,固定动火作 业区取消。
A.一个月
B.三个月
C.半年
D.一年
[单选题]
休克时患者的体位应处于 ( )
A.中凹位
B.头低⾜⾼位
C.平卧位
D.半坐卧位
E.头⾼⾜低位
[单选题]邮轮:海洋:航行
A.狮子:草原:奔跑
B.教师:教室:考试
C.诗人:田园:叹息
D.花卉:花园:培育
[单选题]工作人员在现场工作过程中,凡遇到异常情况(如直流系统接地等)或断路器(开关)跳闸时,不论是否与本工作有关,都应立即( ),保持现状。
A.停止工作
B.报告运维人员
C.报告领导
D.报告调控人员
E.略
F.略
[单选题]申请人隐瞒有关情况或提供虚假材料的,( )不得再次申请。
A.年度内
B.1年内
C.2年内
[单项选择]分析室常用的EDTA水溶液呈()性。
A. 强碱
B. 弱碱
C. 弱酸
D. 强酸
[单选题]继电保护装置按被保护的对象分类,有电力线路保护、发电机保护、变压器保护、电动机保护、( )等。
A.差动保护
B.母线保护
C.后备保护
[填空题]if语句与()_语句一起可以构成循环结构。
[单选题]装载空铁桶,货车使用限制表规定限制使用的车辆是( )。
A.棚车
B.敞车
C.有端侧板平车
D.底开门车
[不定项选择题]A.甘露醇
A.去氨加压素
B.螺内酯
C.甘油果糖
D.氢氯噻嗪
E.具有排钾作用的利尿药是
[判断题]列车在正常使用时,若蓄电池的电量已经充满,蓄电池会转为恒压但不限电流的浮充电状态。( )
A.正确
B.错误
[单项选择]以下哪个词涉及到一天当中的一个时间段
A. Primavera.
B. Ma ana.
C. Fin de semana.
D. Sábado.
[简答题]请问对于热巧克力,需要加几泵巧克力预调液?
[简答题]棒材生产Ф12螺纹钢,定尺为9m,每捆200支,实际重量为1.533t,试求其负差率。
[单项选择]杜仲的加工方法为()。
A. 发汗
B. 阴干
C. 置沸水中略烫
D. 蒸透心,敞开低温干燥
E. 置沸水中煮至透心
[单项选择]关于低血糖症的类型和诊断
()造成空腹低血糖症的原因不包括()
A. 使用胰岛素过量
B. 慢性酒精中毒
C. 肝功能衰竭
D. 特发性功能性低血糖症
E. 胰岛B细胞瘤
[填空题]最佳浮选参数试验由()、()、()和()组成。
[多项选择]在制定媒体计划时设定广告有效频次应考虑的因素有()。
A. 创意因素
B. 媒体因素
C. 受众因素
D. 价格因素
E. 行销因素
[多选题]蓄电池集中监测应符合( )。
A.12V单体电池端电压误差范围不大于±20mV
B.总电压相对误差范围不大于0.5V
C.电池温度误差范围为±1℃
D.总电压相对误差范围不大于1V
[不定项选择题]共用题干
Eat to Live
A meager diet may give you health and long life,but it's not much fun-and it might not even be necessary.We may be able to hang on to most of that youthful vigor even if we don't start to diet until old age.
Stephen Spindler and his colleagues from the University of California at Riverside have found that some of an elderly mouse's liver genes can be made to behave as they did when the mouse was young simply by limiting its food for four weeks.The genetic rejuvenation won't reverse other damage caused by time for the mouse,but could help its liver metabolize drugs or get rid of toxins.
Spindler's team fed three mice a normal diet for their whole lives,and fed another three on half-rations.Three more mice were switched from the normal diet to half-feed for a month when they were 34 months old-equivalent to about 70 human years.
The researchers checked the activity of 11,000 genes from the mouse livers,and found that-46 changed with age in the normally fed mice.The changes were associated with things like inflammation and free radical production-probably bad news for mouse health .In the mice that had dieted all their lives,27 of those 46 genes continued to behave like young genes. But the most surprising finding was that the mice that only started dieting in old age also benefited from 70 percent of these gene changes.
"This is the first indication that these effects kick in pretty quickly,"says Huber Warner from the National Institute on Aging near Washington
D.
C.
No one yet knows if calorie restriction works in people as it does in mice,but Spindler is hopeful."There's attracting and tempting evidence out there that it will work,"he says.
If it does work in people,there might be good reasons for rejuvenating the liver. As we get ol- der,our bodies are less efficient at metabolizing drugs,for example.A brief period of time of die- ting,says Spindler,could be enough to make sure a drug is effective.
But Spindler isn't sure the trade-off is worth it."The mice get less disease,they live longer,but they're hungry,"he says."Even seeing what a diet does,it's still hard to go to a restaurant and say:‘I can only eat half of that.’"
Spindler hopes we soon won't need to diet at all.His company,Lifespan Genetics in California,is looking for drugs that have the effects of calorie restriction.
What can be inferred about completely normally fed mice mentioned in the passage?
A.They will not experience free radical production.
B.They will experience more genetic rejuvenation in their lifetime.
C.They have more old liver genes to behave like young genes.
D.They are more likely to suffer from inflammation.
[多选题]CR400AF动车组车下TCR天线、BTM天线位于()车。
A.01
B.03
C.06
D.00
[单选题]提出一个问题往往比解决问题更重要,因为解决问题也许是一个数学上或试验上的技能而已。而提出新问题,则需要有创造性的想象力,而且标志着科学的真正进步。据此可知( )。
A.提出问题比解决问题更难
B.善于提出问题的人更善于解决问题
C.只有提出问题才标志科学的进步
D.缺乏创造性的想象力的人不善于提出问题
[单选题]消防监督人员赵某在对县城内一加油站进行检查时发现,加油工钱某在加油时手上夹着点燃的香烟。赵某责令钱某立即改正并对钱某处50元罚款。钱某缴纳罚款的方式为( )。
A.当场交纳
B.到公安机关交纳
C.到消防救援机构交纳
D.到指定银行交纳
[判断题]电源系统的不可用度是指电源系统故障时间和正常供电时间之和的比。(中)(基础知识)
A.正确
B.错误
[判断题]担保合同是主合同的从合同,主合同无效,担保合同无效
A.正确
B.错误
[单选题]关于SSB-RS信号的作用描述错误的是( )
A.基于SSB测量的小区间切换
B.基于SSB测量的小区选择
C.业务信道解调的信道估计
D.基于SSB测量的小区间重选
[多选题]下列各项属于流程性材料可定量测量的质量特性的有( )。
A.强度
B.粘性
C.气味
D.质地
E.抗化学性
[判断题]:财税〔2015〕3号规定的中小企业贷款,是指金融企业对年销售额不超过2亿元的企业的贷款。
A.正确
B.错误