热门试题:
[多选题]若在有分布式电源接入的低压配电网上停电工作，至少应采取以下措施之一防止反送电:（ ）。
A.接地
B.绝缘遮蔽
C.在断开点加锁
D.悬挂标示牌
[多项选择]路线价法不做哪些修正？（）
A. 土地形状
B. 临街状况
C. 交易情况
D. 交易日期
[多项选择]以下各项中，( )是对进出境货物报关正确的表述。
A. 进出境货物的报关必须由报关员代表报关单位办理
B. 进出口货物的收发货人可以自行报关，也可以委托海关准予注册登记的报关企业代理报关
C. 进出境货物报关要经过申报、审单、查验、征税、放行等几个环节
D. 进出口货物的收发货人向海关申报时要填制《进/出口货物报关单》
[判断题]自我教育能力主要由自我评价、自我激励和自我调控等能力构成。
[判断题]思想纯洁是马克思主义政党保持纯洁性的根本，道德高尚是领导干部做到清正廉洁的基础。
A.正确
B.错误
[单项选择]二力杆是指下列哪种杆件( )。
A. 只受两个力的杆件
B. 所受力沿直线作用的杆件
C. 只有轴力的杆称为二力杆
D. 力作用于杆件两端的受力杆
[简答题]
Here is the Nine O’clock News. Today there are four items on this program.
President Absul Krim of Syria has said that danger of war in the Middle East is because Syrian people have waited too long for an end to the troubles with their neighbours. If war comes, says Mr. Krim, Syria will be ready. These remarks have been made in Damascus, the capital of the Syrian Arab Republic.
Policemen in New York have gone on strike. Their leader Mr. Patti Angeli says that they will return to work only when they receive more money for working long hours, and doing what Mr. Angeli calls "the most dangerous job in the city".
Ben Kitson, a writer of stories and plays for children, has died at his home in California. Mr. Kitson was 82. His most famous book of stories The Gentleman’s House sells all over the world in more than twenty-five languages.
It has been a good year on the farm. The warm, wet spring and the fine summer have been very good
[多选题]开立同业银行结算账户，非一级法人开户应提供存款银行一级法人正式发文形式的授权书，授权书内容包括（ ）。
A.开户银行
B.账户名称
C.用途
D.经办人员
[单项选择]导游人员在引导旅游者进行审美时，最关键的突破口就是进行（），开阔其审美视野，提高审美情趣。
A. 高科技导游
B. 全方位导游
C. 针对性导游
D. 趣味性导游
[判断题]滑片引水泵切忌长时间空运转（不宜超过3分钟），否则将导致过热而损坏。
[单选题]( )压井时属于半压井,管柱以下地层流体不能循环出来,作业过程中要考虑到流体置换产生溢流的井控风险。 (五类) (七类)
A.检泵作业
B.压裂
C.酸化压裂
D.负压射孔
[多选题]集团公司《职工奖惩实施办法》中,除不可抗力因素外,职工未按规定履行请假手续连续旷工( )天时,单位应向职工本人或其同住成年亲属送达《限期报到通知书》,在限期内未到单位报到,连续旷工时间超过 天,或者一年内累计旷工时间超过 天(均扣除法定节假日)的,应给予开除处分,并依法解除劳动合同。
A.5;
B.10;
C.15;
D.30。
[简答题]根据JJG 314—2010《测量用电压互感器检定规程》规定，电压互感器首次检定的项目有哪些？
[单项选择]月经数月不行，形体肥胖，胸脘满闷，呕恶痰多，带下量多，舌苔白腻，脉滑。治法应是( )
A. 燥湿健脾，消食导滞
B. 健脾燥湿化痰，活血调经
C. 健脾祛湿，活血调经
D. 燥湿祛痰，健脾止带
E. 燥湿祛痰，行气通经
[单选题]二次波是超声波经轨头下颚反射之后尚未被( )反射之前,由伤损或轨端断面夏射的回波。
A.轨头侧面
B.轨头项面
C.第二次颚部
D.轨头端面
[多选题]选择配送运输车型前,应充分了解和掌握运行道路情况，根据道路情况，按照安全效率确定（ ）。
A.承运人
B.承运时间
C.车型大小
D.装载量
[判断题]资产负债表“年初数”栏内各项数字，应根据上年末资产负债表“期末数”栏内所列数字填列。如果本年度资产负债表规定的各个项目的名称和内容同上年度不相一致，可直接把上年年末资产负债表各项目的名称和数字填入本表“年初数”栏内。
[多项选择]维拉帕米的抗心律失常作用包括
A. 减慢房室结的传导速度
B. 减少或取消后除极引起的触发活动
C. 减低窦房结起搏细胞的自律性
D. 房室结的有效不应期缩短
E. 提高病变浦肯野纤维的异常自律性
[单选题] 离心泵的扬程是指( )。
A.液体的升扬高度
B.1kg液体经泵后获得的能量
C.1N液体经泵后获得的能量
D.从泵出口到管路出口间的垂直高度,即压出高度
[单项选择]科学研究表明，室外锻炼最佳时间是什么时候？（）
A. 下午或傍晚
B. 早晨、傍晚
C. 早晨、晚上
[单选题]下列哪种缺陷能被磁粉探伤检验出来？（ ）
A.螺栓螺纹部分的疲劳裂纹
B.钢质弹簧板的疲劳裂纹
C.钢板表面存在的裂纹和折叠
D.以上都是
[判断题] TFDS探测站根据动态检查作业的需要设置，布点平均距离为300km，距列检作业场不小于10km。（）
A.正确
B.错误
[单选题]起重链不得打扭，亦不得拆成单股使用。
A.正确
B.错误
C.略
D.略
E.略
F.略
[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.
Why does the author mention an elderly mouse in paragraph 2?
A.To describe the influence of old age on mice.
B.To illustrate the effect of meager food on mice.
C.To tell us how mice's liver genes behave.
D.To inform us of the process of metabolizing drugs.
[单选题]患者男性，32岁。因车祸造成胸部严重创伤，肋骨骨折，有反常呼吸，急救时突发心搏骤停。抢救应
A.立即行胸外心脏按压;
B.心内注射复苏药物;
C.电击除颤;
D.气管内注入肾上腺素;
E.立即开胸作胸内心脏按压;
[判断题]在执行刑事强制措施时,发现被执行人是县级以上人大代表的,可以继续执行,执行后及时向其所属的人民代表大会主席团或者常委会报告。
A.正确
B.错误
[单项选择]家畜后肢的静脉血首先汇合成为（）。
A. 髂外静脉
B. 髂内静脉
C. 髂总静脉
D. 门静脉
[不定项选择]惊厥持续状态是指
A. 惊厥持续>10分钟
B. 惊厥持续>20分钟
C. 惊厥持续>30分钟
D. 惊厥持续>40分钟
E. 惊厥持续>60分钟
[单项选择]保险代理从业人员在执业活动中，不挪用、侵占保费，不擅自超越代理合同的代理权限或所属机构授权。这所诠释的是职业道德原则中的（）。
A. 客户至上原则
B. 诚实信用原则
C. 勤勉尽责原则
D. 专业胜任原则
[简答题]特殊天气使用脚扣和登高板，应采取防坠落措施。
[单选题]调车色灯信号机显示一个（ ）灯光时，准许越过该信号机调车。
A.月白色
B.红色
C.蓝色
[多选题]组织生活会会前、会上、会后需做什么?( )
A.会前,认真学习,谈心谈话,听取意见
B.会上,查摆问题,开展批评与自我批评,明确整改方向
C.会后,制定整改措施,逐一整改落实
D.会后,制定整改措施
[单选题]县级以上人民政府公安机关，经（）公安机关和同级人民政府批准，对严重危害社会治安秩序的突发事件，可以根据情况实行现场管制。
A.上级
B.省级
C.市级
D.县级
[单选题]在近端小管中滤出的HCO3被重吸收的主要形式是
A.H2CO3
B.H+
C.CO2
D.HCO3
E.OH
[判断题]铁路互联网订餐属于铁路旅客运输基本服务
A.正确
B.错误
[单选题]下边的仪表安装位置的图形符号意思是：( )。
A.集中仪表盘面安装仪表。
B.集中仪表盘面后安装仪表。
C.就地仪表盘面安装仪表。
D.就地仪表盘面后安装仪表。
[判断题]89. 燃气标志桩埋设回填后特殊情况下可以遮挡部分字。
A.正确
B.错误
[单选题]将牵引电机产生的电磁力矩传递给主动齿轮,其过程必须经过( )。
A.轴箱
B.联轴节
C.减速箱
D.摇枕
[单选题]高血压按病因分类，最为多见的是
A.继发性高血压
B.原发性高血压
C.缓进型高血压病
D.急进型高血压病
