热门试题:
[单项选择]Years ago our cities were full of cars, buses and trucks. Now the streets are completely congested (拥挤的) and it is very difficult to drive a car along them. Drivers must stop at hundreds of traffic lights. What are our cities going to be like in ten or twenty years Will enormous (巨大) motorways be built across them With big motorways cutting across them, full of noisy, dirty cars and lorries, our cities are going to be awful places. How can we solve the problem
There are some good ideas to reduce the use of private cars. In 1989, for example, the authorities in Rome began an interesting experiment: passengers on the city buses did not have to pay for their tickets.
In Stockholm there was another experiment: people paid very little for a season ticket to travel on any bus, trolley bus, train or tram in all the city.
In many cities now some streets are closed to vehicles, and pedestrians are safe there.
In London there is another experiment: part of the street is for b
A. They take a completely-free bus service.
B. They experimented a very cheap bus service.
C. Part of the street is for buses only.
D. They closed the streets to cars.
[简答题]确定群体A和B之间的相似性系数和遗传距离(实际研究中至少需要20个座位)。等位基因频率为p1=0.4，q1=0.6，p2=0.6，q2=0.4。
[单项选择]在采取所有可能的措施和一切必要的法律程序之后，本息仍然无法收回，或只能收回极少部分。这个属于贷款分类中的( )。
A. 正常
B. 损失
C. 可疑
D. 关注
[不定项选择题]共用题干
Owls and Larks
1 In this article,we look at the importance of sleep for learning. Most healthy adults need eight or more hours of sleep. But why do we need sleep in the first place?We need sleep for the brain to get a chance to rebuild memories stored during the day and associate these with previously learned things. If this process is interrupted by,say,the sound of an alarm clock,it may not be as effective. So if your sleep is cut short by the alarm clock,how dama- ging is it?The truth is that it's difficult to predict,as so much depends on how much sleep your body actually needs on that particular occasion.
2 The popular belief that people are naturally either larks(early risers)or owls is false. The reason why people tend to be one or the other has more to do with lifestyle,age,and personality. Many people who appear to be early birds may have just become so through hab- it,for example,parents with very young children. Teenagers can have difficulty falling asleep until late at night and then they naturally have problems getting up the following morning.
3 The main reason why owls are owls is that they tend to spend their time over a book, movie,or computer game till the early hours of the morning. They enjoy the quiet of the night when they can pursue their passion. On the other hand,larks can make better use of early morning hours where they can study in quiet at the time when their brains are most refreshed. So which is better for learning一an owl's or a lark's lifestyle?The simple truth is that it is more complex than simply being one or the other. Leading a well-balanced life in terms of work and play and sleeping enough to bring maximum refreshment is probably the secret.
4 As for naps, experts on insomnia（失眠）argue against taking naps, as these may keep people up at night. If your nap lasts only five minutes to half an hour and does not affect your ability to fall asleep in the night,it will probably help you be more alert in evening hours.
However,if you are having problems getting to sleep at night,it's not only naps that you should avoid. Try not to drink a lot of alcohol, take nicotine（尼古丁) , do mentally intense activities like preparing for exams or doing exercise in the evening. Some people swear that drinking coffee never stops them from sleeping like a log,whereas others will never go near the stuff for fear of being awake all night. However,the best advice for most is to avoid it in the evening,and if you drink coffee before a nap,remember you are likely to awaken as soon as the caffeine starts kicking in.
Paragraph 1______
A.What Should We Avoid?
B.How Much Sleep Do We Need?
C.Which Is Better,Being an Owl or a Lark?
D.Why Do We Need Sleep?
E.What Makes People Owls or Larks?
F.What Helps Us Fall Asleep?
[单项选择]在签订对外经济贸易合同时控制汇率风险的首要步骤是（）。
A. 选择有利的合同货币
B. 加列合同条款
C. 进行即期外汇交易
D. 提前或延期结汇
[单选题]步行上下班时，区间应在（ ）或路旁走行；在双线区间，应面迎列车方向。
A.道心
B. 枕木头
C. 路肩
D.邻线
[多项选择]高聚物改性沥青防水卷材施工，可采用（）等方法铺贴卷材。
A. 冷粘法
B. 热熔法
C. 热粘法
D. 自粘法
E. 热风焊接
[单选题]体现“内部控制优先”的要求不包括( )
A.要充分考虑各种可能的洗钱风险
B.把消除洗钱风险作为制定反洗钱内部控制制度的出发地和落脚点
C.要把防控洗钱风险纳入总体风险的控制框架内
D.要与金融机构的经营规模、业务范围和风险特点相适应
[判断题]诚实是人心灵纯净的折光，不仅可以照亮自己，还可以温暖他人。
A.正确
B.错误
[单选题]单选题]按照《房屋建筑和市政基础设施工程施工安全监督规定》监督人员应当在抽查前了解工程项目有关情况,确定( ),备好所需设备、资料和文书等。
A. 抽查范围和内容
B. 工程重大危险源
C. 抽查频次
D. 项目责任人
[多选题](1.5分)智慧家庭是一个()的有机融合的智慧化家庭综合性服务平台。
A. 家庭智能设备
B. 物联网
C. 应用服务
D. 高速信息网络
[单选题]制冷器的作用是控制温度，制冷器故障会导致装置无法顺利升温至（）℃：( )
A.40
B.60
C.70
D.80
[单项选择]各高炉炉缸1段的温差控制范围是（）。
A. 小于1℃
B. 小于2℃
C. 小于3℃
D. 小于4℃
[单项选择]中国的航天食品按营养标准与热量供给量划分的种类有（）
A. 食谱食品
B. 储备食品
C. 救生食品
D. 复水食品
[单选题]井控意识淡薄是导致事故发生的（）原因。
A.根本
B.间接
C.直接
D.管理
[单项选择]“王中郎以围棋为坐稳，支公以围棋为手谈。”这两句话出自刘义庆的（）。
A. 《新语》
B. 《法言》
C. 《淮南子》
D. 《世说新语》
[单项选择]下列物质或其主要成分不属于酯类化合物的是（）。
A. 酚醛树脂
B. 牛油
C. 火棉
D. 醋酸纤维
[单选题]第一、二种工作票需办理延期手续，应在工期尚未结束以前由（）提出申请。
A.工作负责人向工作票签发人
B.工作许可人向运维负责人
C.工作负责人向运维负责人
D.工作许可人向工作票签发人
[单选题]善治痰热中风的药是
A.青黛
B.牛黄
C.白薇
D.土茯苓
E.败酱草
[多选题][126]轨道精调应遵守（ ）原则。
A.A、A.先高低后水平
B.B、B.先水平后高低
C.C、C.先轨向后轨距
D.D、D.先轨距后轨向
[单选题]单选题：当二号线消防电话主机发出告警音，按下（ ）键，告警音消除。
A.静音
B.停止
C.消音
D.复位
[单项选择]上直肌的支配神经为（）
A. 面神经
B. 动眼神经
C. 滑车神经
D. 外展神经
E. 三叉神经
[填空题] 中心对各( )车队长、派班员量化完成情况进行监督检查,未完成量化的,中心对其( )进行考核。
[单选题]历史文化遗产的综合体，涵盖历史文化街区、文物保护单位和大量历史建筑的是( )。
A.历史文化保护单位
B.历史文化名乡
C.历史文化街区
D.历史文化名城
[单选题]在市区、村镇、工矿区及施工区等特殊地段和大雨之后,重要通信期间及动土较多的季节,应( )。——
A.按计划巡查
B..每月巡查一次
C..增加巡查次数
D.每周巡查一次
[单选题]按《塔里木油田钻井井控实施细则》规定:防喷器远程控制系统的使用与维护远控台.司控台气路油雾杯应保持油面高度( ),分水滤气器应及时排除杯内积水。各气路.油路应密封良好。
A.1/2~1/3
B.1/2~1/4
C.1/2~2/3
D.1/2~1/5
[填空题]汽轮机纵销的中心线与横销的中心线的交点为（ ）。
[单选题]化学事故抢险救援消防车按功能分类属于( )。易
A.灭火类消防车
B.专勤类消防车
C.举高类消防车
D.以上都不属于
[多选题]二氯甲烷发生燃烧事故时，采用（ ）处置。
A.泡沫
B.干粉
C.雾状水
D.二氧化碳
[单选题]E公司为有色金属企业,为扩大产能,E公司计划新建年产10万吨阳极铜生产线。项目建设前,E公司委托有资质的技术服务机构F完成了安全预评价,进行了安全设施设计,
向安全生产监督管理部门提出审查申请并获得通过,2017年5月25日项目建成。根据《建设项目安全设施“三同时”监督管理办法》,该项目应该进行(
)后,方可投入生产和使用。
A.建设项目安全设施试运行
B.建设项目安全设施安全评价
C.建设项目安全设施竣工验收
[单选题]法维莱制动机货车位模式中（ ）用于列车管泄漏测试。
A.中立
B.补风
C.不补风
[多选题]某高层民用建筑16楼发生火灾,消防队接到报警后调集大批力量赶到现场。应利用( )深入内部进攻。
A.登高消防车
B.封闭楼梯
C.消防电梯
D.防烟楼梯
