热门试题:
[多选题]价值工程活动程序中的基本步骤是()。
A. 功能定义
B. 提出问题
C. 功能评价
D. 制定改进方案
E.解决问题
[单选题]线槽布缆垂直或倾斜敷设时，应采用线扣固定线缆以防止线缆在槽内移动，垂直敷设时其线缆固定间距不要大于( )米
A.1
B.2
C.2.5
D.3
[单项选择]华夏银行规定个人客户经理、助销员的学习培训时间一年不得少于（）
A. 30小时
B. 60小时
C. 20小时
D. 100小时
[多项选择]按照房产税的有关规定，免征或暂不征收房产税的房产包括（）。
A. 地下人防设施的房屋
B. 因大修导致连续停用半年以上的房屋
C. 向居民供热许向居民收取采暖费的供热企业的生产用房
D. 为基建工地服务的各种临时性房屋丁程结束后转让的
[单选题]进行热处理作业时，操作人员不得擅自离开。作业结束后应详细检查，确认无（ ）危险后方可离开。
A.起火
B.触电
C.摔伤
D.落物
[多选题]下面哪几个截面属于我国常用导线标称截面( )。
A.1mm2
B.1.5mm2
C.2.5mm2
D.4mm2
E.5mm2
[单项选择]下列间接盖髓适应证中，哪一种是不正确的（）。
A. 深龋
B. 活髓牙全冠牙体预备后
C. 外伤冠折未露髓
D. 深龋引起的可复性牙髓炎
E. 慢性闭锁性牙髓炎
[填空题]>当钢材纵向折断时,在断裂之前发生显著塑性变形的断口叫( )断口。
[单选题]接地开关可动部件与其底座之间的铜质软连接的截面积应不小于（）mm2。
A.20
B.30
C.40
D.50
[填空题]依次填入下列句子方框内的字，正确的一组是______。
①大街小巷里的《招聘启______》贴得满世界，也该有个规矩。
②灾区人民受到党和政府无微不______的关怀。
③她的设计每每独出______裁，与众不同。
④成绩只能说明过去，我们要再接再______更进一步。
- A．不 至 新 厉
- B．事 致 新 励
- C．示 致 心 励
- D．事 至 心 厉
[单选题]法国资产阶级革命后出现多次封建王朝复辟,这说明( )
A.社会进步无规律可言
B.社会进步是前进性与曲折性的统一
C.社会进步是人们的主观愿望
D.社会进步没有客观标准
[单项选择]传统相机拍摄与数码相机拍摄最大的差别在于（）
A. 色彩包容性
B. 细节
C. 层次
D. 渐变
[单项选择]串行主板模拟给定电压为（）
A. –10V～+10V
B. –10V～0V
C. +10V～0V
D. –5V～+5V
[单项选择]Assuming that a constant travel-time budget, geographic constraints and short-term infrastructure constraints persist as fundamental features of global mobility, what long-term results can one expect In high-income regions, (41) North America, our picture suggests that the share of traffic (42) supplied by buses and automobiles will decline as high-speed transport rises sharply. In developing countries, we (43) the strongest increase to be in the shares first for buses and later for automobiles. Globally, these (44) in bus and automobile transport are partially offsetting. In all regions, the share of lowspeed mil transport will probably continue its strongly (45) decline.
We expect that throughout the period 1990～2050, the (46) North American will continue to devote most of his or her 1.1-hour travel-time (47) to automobile travel. The very large demand (48) air travel (or high-speed mil travel) that will be
A. to
B. as
C. with
D. over
[单选题]防止瓦斯积聚按规定检查次数进行巡回检查瓦斯，实行()制度，杜绝空班、漏检、假检等违章行为。
A.一炮三检
B.三专两闭锁
C.三人连锁放炮
D.一炮三检和三人连锁放炮
[单项选择]投标文件应实质上响应招标文件的所有条款，无显著差异和保留。下列情形中，属于无显著差异和保留的是（）。
A. 对招标人的权利造成实质性限制而未影响投标人的义务
B. 对投标人的权利造成实质性限制而未影响招标人的义务
C. 纠正差异对该投标人有利而对其他投标人不利
D. 纠正差异对该投标人不利而对其他投标人有利
[单项选择]单不饱和脂肪酸（）
A. EFA
B. SFA
C. PUFA
D. DHA
E. EPA
[不定项选择题]共用题干
Voice Your Opinion一Change is Needed in Youth Sports
Everywhere you look, you see kids bouncing a basketball or waving a tennis racquet（网球拍）.And
these kids are getting younger and younger. In some countries,children can compete on basketball,
baseball,and volleyball teams starting at age nine._________(46)And swimming and gymnastics classes
begin at age four,to prepare children for competition.
It's true that a few of these kids will develop into highly skilled athletes and may even become members
of the national Olympic teams._________(47)This emphasis on competition in sports is having serious
negative effects.
Children who get involved in competitive sports at a young age often grow tired of their sport. Many
parents pressure their kids to choose one sport and devote all their time to it._______(48)But 66 percent
of the young athletes wanted to play more than one sport一for fun.
Another problem is the pressure imposed by over-competitive parents and coaches.Children are not
naturally competitive.In fact,a recent study by Paulo David found that most children don't even understand
the idea of competition until they are seven years old. ________(49)
The third,and biggest,problem for young athletes is the lack of time to do their homework,have fun,
be with friends一in short,time to be kids.When they are forced to spend every afternoon at sports practice,
they often start to hate their chosen sport.A research found that 70 percent of kids who take part in
competitive sports before the age of twelve quit before they turn eighteen.__________(50)Excessive
competitive sports take away all the enjoyment.
Need to remember the purpose of youth sports一to give kids a chance to have developing,strong,
healthy bodies.
__________(47)
A.A survey found that 79 percent of parents of young athletes wanted their children to concentrate on one sport.
B.The young soccer organization has teams for children as young as five.
C.Many of them completely lose interest in sports.
D.Sports for children have two important purposes.
E.But what about the others,the average kids?
F.Very young kids don't know why their parents are pushing them so hard.
[判断题]要在维持滤失量和黏度大体不变的情况下把密度降下来是在钻进低压油、气层时常常碰到的问题。
A.正确
B.错误
[判断题]无赔款优待系数区间0.6-1.0，连续3年不出险0.6，上年出险5次及以上1.0。
[单项选择]液硫池气相部分安装温度计是为了防止硫磺（）。
A. 燃烧
B. 中毒
C. 爆炸
D. 凝固
[单选题]当凝汽式汽轮机轴向推力增大时,其推力瓦( )。
A.工作面瓦块温度升高;
B. 非工作面瓦块温度升高;
C. 工作面瓦块、非工作面瓦块温度都升高;
D. 工作面瓦块温度不变。
[判断题]经单位批准，可在带有压力（液体压力或气体压力）的设备上或带电的设备上进行焊接。
A.正确
B.错误
[单选题] 确定地基容许承载力是根据土的物理力学指标或()来确定的。
A.化学分析结果
B.电化学测量结果
C.野外鉴别结果
D.地下水位结果
[单选题]( )又称后熟,是动物性原料由于自身组织酶的活动,尸僵后重新变得柔软.恢复弹性。
A.尸僵作用
B.成熟作用
C.自溶作用
D.腐败作用
[单项选择]既可以得到药材中挥发性成分又可得到水煎液的浸取方法（）
A. 煎煮法
B. 浸渍法
C. 回流法
D. 水蒸气蒸馏法
E. 渗漉法
[单项选择]（）表示显示器在横向（行）上具有的像素点数目。
A. 显示分辨率
B. 水平分辨率
C. 垂直分辨率
D. 显示深度
[单项选择]“入住手续办理和程序”是入住准备中的( )阶段。
A. 入住工作计划
B. 入住仪式策划
C. 环境准备
D. 其他准备事项
[单选题]更换阀门时，用三角刮刀将管线上的法兰端面处理干净，用（ ）处理净密封线内的杂物。
A.直尺
B.螺丝刀
C.钢锯条
D.刮刀尖
[多选题]坐于应急出口座位的旅客必须具备下述能力
A.操作应急出口
B.遵循机组成员给予的口头指示或手势
C.移动或固定应急出口门，以防止阻碍该出口的使用
D.评估打开应急出口是否会增加由于暴露旅客带来的伤害
[单项选择]（）是指对环境具有可感知，可自应并具有功能发现能力的新材料
A. 结构材料
B. 功能材料
C. 智能材料
D. 梯度材料
[多选题]规则设置中可以包括多种规则，各种规则所产生的作用影响范围也不同，这叫做规则的生效范围。各种规则的生效范围分为：
A.全局起效
B.用户起效
C.向前生效
D.向后生效
[判断题]砂浆测强仪中，示值相对误差技术指标应符合±0.3%。
[单选题]DVOR信标辐射场中（ ）。
A.A、基准相位信号对载波调幅，可变相位信号对副载波调频
B.B、基准相位信号对载波调频，可变相位信号对副载波调幅
C.C、基准相位信号对载波调
幅，可变相位信号对副载波
调幅
D.D、基准相位信号对载波调频，可变相位信号对副载波
调频
[单选题]尖轨跟端直向轨距加宽向辙叉方向递减，距离为（ ）。
A.0.5 m
B.1 m
C.1.5m
D.3m
