热门试题:
[判断题]脚手架搭设时，立杆接长，顶层顶步可采用搭接，搭接长度不应小于lm，应采用不少于两个扣件固定，端部扣件盖板的边缘至杆端距离不应小于100mm。（）
A.正确
B.错误
[单选题]非客户侧及客观原因情况下，宽带业务装机时间要求最高不超过（）。
A.12小时
B.24小时
C.36小时
D.48小时
[填空题] As Dr. Samuel Johnson said in a different era about ladies preaching, the surprising thing about computer is not that they think less well than a man, but that they think at all. The early (36)_________ computer did not have much going for it except a (37)_________memory and some good math skills. But today the best models can be wired up to learn by experience, follow an argument, ask proper questions and write poetry and music. They can also carry on somewhat (38)_________conversations.
Computers imitate life. As computer gets more complex, the imitation gets better. Finally, the line between the (39)_________and the copy becomes unclear. In another 15 years or so, we will take the computer as a new form of life.
The opinion seems (40)_________ because, for one thing, computers lack the drives and (41)________ of living creatures. But driving a car can be programmed into the computer’’s brain just as nature programmed them into our human brains as a part of the equi
[单选题]农村用户相对集中的地区低压供电半径不宜超过（） 米
A.500
B.400
C.450
D.550
[判断题] 系统频率降低时,应增加发电机的有功功率( )。
A.正确
B.错误
[判断题] 有学者认为,人之所以犯罪,其根本原因在于性染色体数量异常。( )
A.正确
B.错误
[单项选择]酶联免疫吸附试验批间变异系数应小于（）
A. 5%
B. 10%
C. 15%
D. 20%
[单项选择]间接固位体与支点线的关系最好是（）。
A. 接近支点线
B. 在支点线上
C. 间接固位体与义齿游离端在支点线同侧
D. 间接固位体与义齿游离端在支点线两侧，并远离支点线
[判断题]运动能力与身体素质的变化不是导致运动性疲劳的因素。
[单项选择]含氟牙膏有明显的防龋效果。含氟牙膏在世界范围的广泛应用是使龋病患病率出现大幅度下降的原因之一。含氟牙膏常用氟浓度为（）.
A. 1ppm
B. 10ppm
C. 100ppm
D. 1000ppm
E. 10000ppm
[单选题]（2019年）2018 年甲企业发生短期借款利息 120 万元，享受购货现金折扣 10 万元，收到银行存款利息收入 30 万元。2018 年末甲企业利润表中“财务费用”项目应列报的金额是（ ）万元。
A.120
B.90
C.80
D.100
[多项选择]化学反应的发生，有赖于反应物粒子之间的碰撞接触，下列若干条件的变化中，能增加反应物粒子之间的碰撞接触机会，提高化学反应速率的是（）。
A. 增大液相反应物的压强
B. 生成物浓度增加
C. 提高反应温度
D. 反应物的浓度增加
[单项选择]（）及以上的绝缘套管内部充满绝缘油。
A. １０ｋＶ
B. ３５ｋＶ
C. １１０ｋＶ
D. ５５０ｋＶ
[判断题]支拆3m以上高度的模板时，应搭设操作平台，高度不足3m的可使用移动式登凳或站在拉杆、支撑杆上操作
A.正确
B.错误
[单项选择]
In most American cities, the rent for a one-bedroom apartment was $250 or more per month in recent years. In some smaller cities such as Louisville, Kentucky or Jacksonville, Florida the rent was less, but in larger cities it was more. For example, if you lived in Los Angeles, you had to pay $400 or more to rent a one-bedroom apartment, and the same apartment rented for $625 and up in Chicago. The most expensive rents in the U. S. were in New York City, where you had to pay at least $700 a month to rent a one-bedroom apartment in most parts of the city.
Renters and city planners are worried about the high cost of renting apartments. Many cities now have rent control laws to keep the cost of renting low. These laws help low-income families who cannot pay high rents.
Rent controls in the United States began in 1943 when the government imposed rent controls on all American cities to help workers and the families of soldiers during World War Ⅱ. After the war, only one
A. The Highest Rent
B. Rent Controls
C. Building Apartments for Low-Income Families
D. Rent-Control Laws
[单选题]举高车辆进入抢险救援现场后，应尽量使抢救对象处于消防车的后方或侧方约（）米
A.5～8
B.6～12
C.7～15
D.8～17
[单项选择]企业总体战略选择矩阵是由汤姆森和（）二人在波士顿矩阵的基础上提出的。
A. 克利夫·鲍曼
B. 汤普森
C. 查尔斯·霍菲
D. 斯特克兰
[判断题] 灭火作战过程中,应根据火场实际情况和作战任务的需要恰当运用自然排烟法、人工排烟法、电排烟或机械排烟法。( )
A.正确
B.错误
[单选题]校车是指用于有组织地接送3周岁以上学龄前幼儿或接受义务教育的学生上下学的_____以上的载客汽车。
A.5座
B.7座
C.9座
D.19座
[判断题]自制悬挑式钢平台使用属于危险性较大的分部分项工程。( )
A.正确
B.错误
[单项选择]
B
If you do not use your arms or your legs for some time, they become weak; when you start using them again, they slowly become strong again. Everyone knows this, and nobody would think of questioning this fact. Yet there are many people who do not seem to know that memory (记忆) works in the same way. When someone says he has a good memory, he really means that he keeps his memory in practice by often exercising it.
If a friend says that his arms and legs are weak, we know that it is his own fault (过错). But if he tells us that he has a poor memory, many of us think that his parents are to blame (责怪), and few of us think that it is as much his own fault as if it was his arms or legs that were weak.
Have you ever noticed that people who cannot read and write usually have better memories than people who can This is because those illiterate people have to remember things; they cannot write them down in a little notebook. They have to remember
A. Right.
B. Wrong.
C. Doesn’t Say.
[多项选择]项目风险分析是认识项目可能存在的潜在风险因素，估计这些因素发生的可能性及由此造成的影响，分析为防止或减少不利影响而采取对策的一系列活动。它包括( )。
A. 风险识别
B. 风险估计
C. 风险评价
D. 对策研究
E. 理论实践
[多项选择]关于我国实施阶梯电价，以下说法正确的有（）。
A. 实施阶梯电价实质就是为了电费涨价
B. 实施阶梯电价能节约用电，促进节能减排
C. 实施阶梯电价是能减轻低保户等困难家庭的用电负担
D. 实施阶梯电价累进用电越多，电费缴纳越多，使电费负担更加公平合理
[不定项选择题]某市私家车泛滥，加重了该市的空气污染，并且在早高峰期和晚高峰期间常常造成多个 路段出现严重的拥堵现象。 为了解决这一问题，该市政府决定对私家车实行全天候单、双号限 行，即奇数日只允许尾号为单数的私家车出行，偶数日只允许尾号为双数的私家车出行。
以下哪项最能质疑该市政府的决定
A.该市有一家大型汽车生产企业，限行令必将影响该企业的汽车销售
B.该市私家车拥有者一般都有两辆或者两辆以上的私家车
C.该市私家车车主一般都比较富有，他们不在乎违规罚款
D.私家车的运行是该市的税收来源之一，税收减少将影响公共交通的进一步改善
[单选题]从设备材料的安全卫生出发，应该为婴幼儿选择无毒、()、符合环保要求的设备和材料。
A.数量充足
B.色彩鲜艳
C.无害
D.动态的
[单选题]冠心病的基本病因是
A.重度主动脉瓣病变
B.冠状动脉栓塞
C.冠状动脉粥样硬化
D.肥厚型心肌病
E.冠脉痉挛
[单选题]中国秉持( )的全球治理观,倡导国际关系民主化,坚持国家不分大小、强弱、贫富一律平等,支持扩大发展中国家在国际事务中的代表性和发言权。 ( )
A. 共商共建共享
B. 平等互利共享
C. 互利协作共赢
D. 公道正义和平
[填空题]根据《供配电系统设计规范》规定，在系统接地型式为TN及TT的低压电网中，当选用Y,yno结线组别的三相变压器时，其由单相不平衡负荷引起的中性线电流不得超过低压绕组额定电流的（ ），且其一相的电流在满载时不得超过（ ）。
[多选题]一旦发生人身伤害事故，采取的急救原则是（ ）。
A.先救人
B.先灭火
C.后治伤
D.抢救财产
[简答题]试析东汉豪强地主田庄经济的特点及其历史地位。
[判断题]-D-005 3 1 3
压力容器环向.纵向焊接接头的棱角度,最大值不超过 10mm。
A.正确
B.错误
[判断题]特级护理排泄护理包括留置尿管的护理( )
A.正确
B.错误
[单项选择]定义输入法热键的方法是（）。
A. 在“控制面板”双击“输入法”，选择输入法标签，然后自定义各种热键
B. 在“控制面板”中指向“输入法”，选择热键标签，然后自定义各种热键
C. 在“控制面板”指向“输入法”，选择输入法标签，然后自定义各种热键
D. 在“控制面板”双击“输入法”，选择热键标签，然后自定义各种热键
[判断题]在电气化铁路上施工时，一次拨道量不得超过20mm
A.正确
B.错误
