热门试题:
[单选题]水分测定仪测定样品时,测定结果重复性差的原因不包含( )
A.电极连接不好
B.进样垫漏
C.样品不均匀
D.搅拌速度不一致
[单项选择]
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The promise of finding
long term technological solutions to the problem of world food shortage seems
difficult to fulfill. Many innovations that were once heavily supported and
publicized, such as fish protein concentrate and protein from algae grown on
petroleum substrates, have since fallen by the wayside. The proposals themselves
were technically feasible but they proved to be economically unviable and to
yield food products culturally unacceptable to their consumers.
One characteristic common to unsuccessful innovations has been that, even
with extensive government support, they often have not been technologically
adapted or culturally acceptable to the people for whom they had been developed.
A successful new technology, therefore, must fit the entire social cultural
system in which it is to find a place. Security of crop yield, practicality of
storage, and costs are much more significant than had previo
A. The introduction of technological innovations to reap profits might alleviate food shortages to some degree, but any permanent solution can come only from effective governmental intervention in the socioeconomic system.
B. Innovations in agricultural technology will be of little help, and perhaps even harmful, in combating food shortage, no matter how well designed they are to suit local circumstances.
C. Long lasting solutions will not be found until large landowners adopt improvements that will make production more efficient and thus more profitable.
D. In order to achieve a meaningful solution to the problem of food shortage, the tastes of the general population must be educated to accept the new food products of modern agricultural technology.
[多选题]关于法与道德的共同点，下列表述正确的有（ ）
A.法律和道德都是一种社会规范，都具有强制性
B.法律和道德都具有强制性，都是人们应该遵循的规范
C.法律和道德都是历史的产物，都是不断变化的
D.法律和道德都是建立在一定物质生产方式之上的
[判断题]混凝土轨枕每千米最多铺设1920根。（ ）
A.正确
B.错误
[单选题]关于基金管理人登记与备案的及时性原则,下列说法错误的是()
A.申请登记事项发生重大变化的,基金管理人应当及时告知基金协会并申请变更登记内容
B.基金管理人在资产管理业务综合报送平台注册账号之日起六个月内，仍未备案首支基金产品的,中国证券投资基金业协会将注销该基金管理人的登记
C.在基金管理人取得营业执照后进行基金募集前,应当及时向中国证券投资基金业协会进行登记,未经登记,不得进行基金的募集
D.基金管理人发生变更控股股东等重大事项变更的,应在完成工商变更登记后十个工作日内，通过资产管理业务综合报送平台向中国证券投资基金协会进行重大事项变更
[单项选择]国家计量院参加国际计量局和亚太区域计量组织组织实施的比对且测量结果在等效线以内，比对结果可以作为各国计量院互相承认校准及测量能力的技术基础，测量能力得到（）认可，其校准和测试证书在米制公约成员国得到承认。
A. 国际计量局
B. 外资企业
C. 各国政府
D. 各国计量院
[单选题]专业巡视应按规定的巡视内容和巡视周期对各类设备进行巡视。巡视情况应有（）（见附录H）。
A.记录
B.报告
C.录音
D.书面或电子文档记录
[判断题]轨行区积水淹过扣件，未淹过轨面时，电客车限速25km/h运行；
A.正确
B.错误
[填空题]CRH2A 型动车组速度在 ( ) 以下，操作耐雪制动起作用。
[单项选择]
Alcohol use is the number one drug problem among young people. It’s easy to understand why. For adults, alcohol is legal, widely (1) in American culture and easily (2) . Many kids can get a drink right in their own homes. (3) are drinking younger and more frequently than (4) , often beginning around age 13, according to studies. The average number of alcoholic drinks among college students is five on a single (5) , according to a recent survey. Among those younger 21, it is 5.5 drinks, and among (6) 21 and older, it is 4.2 drinks.
Young people almost always begin drinking because of (7) pressure, in an attempt to be accepted and (8) in the group. According to the U.S. Surgeon General, more than half of junior and senior high school students drink alcoholic (9) . More than 40 percent of those who drink admit to drinking when upset, 31 percent admit to drinking (10) , 25 percent admit
A. received
B. accepted
C. acknowledged
D. admitted
[判断题]款箱交接要在防尾随联动互锁安全门内视频监控下办理交接手续。
A.正确
B.错误
[判断题]火情侦察是一项艰巨、复杂、细致的任务，应根据到场的灭火力量、火势发展等情况有序地进行。（ ）
A.正确
B.错误
[判断题]司机控制器控制手柄必须配备“警惕”按钮功能，ATO操作不受警惕按钮控制。( )
A.正确
B.错误
[多选题]王莽改制的措施主要包括（）。
A.推行“王田”“私属”制
B.实行“五均”“六管”
C.改革货币制度
D.大幅度地调整行政区划
[单选题] 我国从 年开始在全国推行注册志愿者制度
A.2001
B. 2002
C. 2003
D.2004
[单项选择]具有安全电压的设备属于（）类设备。
A. Ⅰ
B. Ⅱ
C. Ⅲ
[单选题]完成每吨装卸搬运作业量的()称为吨成本。
A.油耗
B.电耗
C.维修费
D.成本
[单选题]关于世界银行贷款项目采用国际竞争性招标，下列说法中正确的是（ ）。
A.借款人向世界银行送交总采购通告的时间，最晚不应迟于公开发售招标文件前90天
B.一个项目的具体采购合同是否需要资格预审，由借款人自主决定
C.如果未经资格预审，则应对评标价最低的投标人进行资格定审
D.招标文件公开发售前，无须得到世界银行的意见
[判断题]互感器二次回路通电或耐压试验前，应通知检修人员和其他有关人员，并派专人到现场看守，检查二次回路及一次设备上确无人工作后，方可加压
A.正确
B.错误
[单选题]厂内机动车辆的登记,分( )和报废审核制度。
A.购置、转移
B.购置、变更
C.购置、变更、转移
D.变更、转移
[单选题]一下有关双座气开，气闭调节阀的选用和改换事项，不对的是（ ）.
A.原设计气开阀，现改为气闭阀，在流量特性和流通口径相同时，只在倒换一下调节器的正反作用，将不会影响调节系统的正常运行。
B.将阀座反装，阀芯倒向，在通过调整就可以把气开阀改为气闭阀。
C.有些调节阀只要改一下膜头信号的位置，也可把气闭阀改为气开阀。
D.有气便打开的阀叫气开阀，有气才关闭的阀叫气闭阀，工艺应用时，可根据流通口径和流量特性任选一种。
E.配用阀门定位器的正作用调节阀，不必改变阀芯和阀座的方向，就可以实现反作用。
[单选题]临时出国(境)团(组)或者人员中的党员,擅自延长在国(境)外期限,或者擅自变更路线的,对直接责任者和领导责任者,给予( )
A.警告或者严重警告处分
B.行政处分
C.撤销党内职务或留党察看
D.开除党籍
[单选题]下列( )执法行为应当由消防救援机构负责人审批:
A.消防双随机检查任务的生成
B.行政处罚简易程序
C.消防产品专项检查活动
D.临时查封/解除临时查封,行政强制执行/代履行,申请人民法院强制执行,同意/不同意恢复使用/生产/经营决定
[单选题]突发事件应急工作应当遵循( )方针。
A.安全第一,预防为主
B.预防为主,防治结合
C.预防为主,常备不解
[判断题]民警在值勤时，发现陈某在机动车道上骑自行车，便要对其违章行为进行处罚，陈某拒绝接受处罚并与之发生争执，民警遂对陈某使用手铐，并将陈某按倒在地，造成陈某手腕表皮挫伤及头部外伤。民警使用手铐的行为是合法的。
A.正确
B.错误
[判断题]高处作业是在坠落高度基准面2m以上(含2m)位置进行的作业
A.正确
B.错误
[简答题]《行规》规定，遇哪些情况应对道岔进行紧固？
[单项选择]油滴分散于液体分散媒中属何种液体制剂（）。
A. 溶液型
B. 胶体溶液型
C. 乳浊型
D. 混悬型
E. 其化类型
[单选题]倒闸操作在无安全遮栏时，人体与10千伏带电体之间应保持不小于（）m的安全距离。
A.0.35
B.0.6
C.0.7
D.1
[单项选择]《中华人民共和国城镇土地使用税暂行条例》(中华人民共和国国务院令第483号)属于( )。
A. 税收法律
B. 税收规章
C. 税收法规
D. 税收通则法
[填空题]
The New Science of Siblings
For a long time, researchers have tried to nail down just what shapes us—or what, at least, shapes us most. And over the years, they’ve had a lot of eureka moments (突发灵感的时刻). First it was our parents, particularly our mothers. Then it was our genes. Next it was our peers, who show up last but hold great sway. And all those ideas were good ones—but only as far as they went. Somewhere, there was a sort of temperamental(捉摸不定的)dark matter exerting an invisible gravitational pull of its own. More and more, scientists are concluding that this unexplained force is our siblings.
From the time they are born, our brothers and sisters are our scolds, protectors, tormentors, playmates, counselors, sources of envy, objects of pride. Our spouses arrive comparatively late in our lives; our parents eventually leave us. Our siblings may be the only people we’ll ever know who truly qualify as partners for life. Siblings are with us for th
[多项选择]确定病原微生物基因在感染中的作用需满足分子Koch假设，以下选项属于Koch假设的是（）
A. 特异性灭活可疑的毒力基因或基因群导致毒力降低
B. 基因的野生型拷贝替换突变型拷贝后，原菌的致病性完全消失
C. 能建立致病基因的动物模型
D. 质粒载体在研究的细菌中复制
E. 研究的表型或特征与致病菌株有关，与非致病菌株无关
[简答题]当地层倾角小于断层倾角，钻遇逆断层时，地层缺失，钻遇正断层时，地层重复。
[多项选择]中华民族多元一体格局形成的纽带包括什么？（）
A. 地理纽带
B. 经济纽带
C. 文化纽带
D. 政治纽带
[单项选择]城市化过程最直接地表现为（）人口进入城市。
A. 剩余
B. 乡村
C. 城镇
D. 农业
