热门试题:
[单项选择]采用振冲密实法处理松砂土地基时，如振冲器动率为75kN，处理深度不宜超过（）。
A. 7m
B. 12m
C. 15m
D. 20m
[单选题]发动机正常运转，发电机（ ）时，蓄电池进行充电。
A.不发时
B.过载
C.电动势高于电池电动势
D.损坏
[单项选择]临床上使用的基托材料主要为热凝和自凝基托材料两种，在组成、性能及应用上都不同。
白凝基托树脂与热凝基托树脂组成上的主要区别是
A. 牙托粉中是否含共聚粉
B. 牙托粉中是否含有机叔胺
C. 牙托水中是否含有机叔胺
D. 牙托水中是否含交联剂
E. 牙托水中是否含阻聚剂
[单项选择]
Walking to Exercise the Brain
Do you think sitting and studying all the time will improve your grades Think again. Getting some exercise may help, too.
New research with older people suggests that taking regular walks helps them pay attention better than if they didn’t exercise.
Previous research had shown that mice learn, remember, and pay attention better after a few weeks of working out on a running wheel. Mice that exercise have greater blood flow to the brain than those who don’t. Their brain cells also make more connections.
Neuroscientists from the University at Urbana-Champaign wanted to find out if the same thing is true for people. First, they measured the physical fitness of 41 adults, ages 58 to 77, after each person walked 1 mile. Then, participants looked at arrows on a computer screen and had to use computer keys to show which way one particular arrow was pointing.
Adults who were physically fit were fas
A. higher blood pressure
B. faster heartbeat
C. more blood flow to the brain
D. better appearance
[多选题]按照客户的身份特点或账户的属性，并考虑地域、业务、职业、交易规模和频率、交易性质和特征、交易偏好等因素，将客户划分为（）
A.高风险客户
B.较高风险客户
C.一般风险客户
D.低风险客户
[多项选择]企业战略联盟的类型多种多样，从股权参与和契约联结的方式角度来看，企业战略联盟的类型包括（）。
A. 合资企业
B. 相互持股投资
C. 合并兼营
D. 功能性协议
[单项选择]20世纪80年代以后，商业银行的风险管理进入( )。
A. 全面风险管理模式阶段
B. 资产风险管理模式阶段
C. 负债风险管理模式阶段
D. 资产负债风险管理模式阶段
[单项选择]We must leave the party at exactly 9:00 ______ we'll be late for work.
A. for else
B. other
C. else
D. otherwise
[判断题]列车冲突，未构成一般B类以上事故的，为一般C类事故。（）
A.正确
B.错误
[单选题]事故隐患泛指()的人的不安全行为,物的不安定状态和管理上的缺陷。
A.可导致事故发生
B.不可预见
C.不容忽视
[单项选择]
Another month, another dismal set of job figures. America pulled out of its last economic recession way back in November 2001, yet the country’s "jobs recession" finished only last autumn, when 2.7 million jobs had been lost since the start of the slowdown. Now, though economic growth has bounced back, new jobs refuse to do the same in this, the third year of recovery. In February, a mere 21,000 jobs were created, according to the official payroll survey, at a time when George Bush’s economists forecast 2.6 million new jobs for 2004 mounting alarm at the White House, and increased calls for protection against what a growing number of Americans see as the root of most ills: the "outsourcing" of jobs to places like China and India. Last week the Senate approved a bill that forbids the outsourcing of government contracts--a curious case of a government guaranteeing not to deliver value-for-money to taxpayers. American anxiety over the economy appears
A. is the chief reason for the high unemployment rate in the U.S
B. is nothing compared with the job loss within the U.S
C. is profoundly changing the structure of the American economy
D. equals the number of jobs created each month in the U.S
[判断题] 对单侧有电源的辐射形电网,当短路点距离系统电源越远,短路电流越小。( )
A.正确
B.错误
[单选题]吊篮悬挂机构前支架( )支撑在女儿墙上、女儿墙外或建筑无挑檐边缘。
A.严禁
B.必须
C.可以
D.宜
[判断题]装备验收合格后，普通器材培训时间不少于2天。
A.正确
B.错误
[判断题]奇骏全系标配ECODRIVE节能驾驶助手。（）
[判断题]为了使水泵能及时排出吸水管内的空气,吸水管应有沿水流方向连续上升的坡度,一般不大于0.005,以免形成气囊。 ( )
A.正确
B.错误
[单项选择]
Text 1
Since the dawn of human ingenuity, people have devised ever more cunning tools to cope with work that is dangerous, boring, burdensome, or just plain nasty. That compulsion has resulted in robotics — the science of conferring various human capabilities on machines. And if scientists have yet to create the mechanical version of science fiction, they have begun to come close.
As a result, the modern world is increasingly populated by intelligent gizmos whose presence we barely notice but whose universal existence has removed much hum an labor. Our factories hum to the rhythm of robot assembly arms. Our banking is done at automated teller terminals that thank us with mechanical politeness for the transaction. Our subway trains are controlled by tireless robo-drivers. And thanks to the continual miniaturization of electronics and micro-mechanics, there are already robot systems that can perform some kinds of brain and bone surgery with su
A. make a few decisions for themselves
B. deal with some errors with human intervention
C. improve factory environments
D. cultivate human creativity
[判断题]电流互感器可以把高电压与仪表和保护装置等二次设备隔开，保证了测量人员与仪表的安全。
A.正确
B.错误
[多选题]七氟丙烷的主要灭火机理有（）
A.降低燃烧反应速度
B.降低燃烧区可燃气体浓度
C.隔绝空气
D.抑制、阻断链式反应
E.降低燃烧区的温度
[单项选择]焦虑紧张引起的失眠宜用
A. 巴比妥
B. 苯妥英钠
C. 水合氯醛
D. 地西泮
E. 氯丙嗪
[单选题]由于设计人员错误造成设备质量事故损失，设计人除负责采取补救措施外，应( )。
A.免收直接受损失部分的设计费，并支付赔偿金
B.重新设计、并支付赔偿金
C.赔偿委托人的实际损失
D.支付违约金并赔偿损失
[单选题]根据经验法则，当数据服从对称钟形分布的标准分数，标准分数在取值在[-3，+3]范围之内的数据项占比约为
A.68%
B.90%
C.95%
D.99%
[多选题]村民甲在新获得的宅基地上建了一栋两层的楼房，房屋建成之际，为庆祝乔迁之喜，决定庆祝一番。当天，邻居乙、丙、丁均赶来帮忙。乙在帮甲放鞭炮时，因为过于粗心大意，将手炸伤。丙在搬运摆宴席的桌椅时，不小心撞伤了前来看热闹的小朋友A。丁在去帮忙买酒的回途中，被醉酒驾驶机动三轮车的张某在一转弯处撞成重伤，经查，张某曾经从事牲口的贩卖生意，因为一次被骗，导致现在仍然负债累累，没有经济能力。对此，下列说法正确的是
A.对于乙的损害，甲应当承担赔偿责任，但是应减轻甲的责任
B.对于小朋友A的伤害，甲应承担责任，同时丙应当与甲一起承担连带责任
C.对于丁的损害，应当由张某承担赔偿责任
D.对于丁的损害，甲可予以适当补偿
[多选题]专用通信系统由（ ）、广播系统、CCTV、时钟系统、乘客信息系统等子系统组成。
A.传输系统
B.专用电话系统
C.专用无线系统
D.公务电话系统
[判断题]在中性点直接接地系统中，中性点不接地变压器一般不装设中性点防雷保护。
[多选题]随着社会主义改造的完成,以( )为特征的社会主义经济制度建立起来,这是中国进入社会主义社会最主要的标志 ( )
A. 生产资料公有制
B. 市场经济体制
C. 按劳分配
D. 计划经济体制
[单项选择]下列不属于公安指挥自动化系统物理设备中通信设备的是（）。
A. 交换设备
B. 传输设备及传输线路
C. 通信终端设备
D. 探测器
[判断题]发动机排白烟是由于燃料中含水分,燃油供应时间过早,也会导致发动机排白烟。( )
A.正确
B.错误
[单选题] "在云计算的安全需求中,虚拟化安全属于哪一层
A. 接入层
B. 能力层
C. 管理层
D. 外部层"
[单选题]使用5 MHz的探头,探测钢材时其横波波长为( )
A.1.2mm
B.0.64mm
C.2.36mm
D.2.95mm
[单选题]The Pont Neuf was built in _
A. the 1500s
B. the 1600s
C. the 1700s
D. the 1400s
[判断题]不良的工作环境不会对高处作业人员带来任何危害。
A.正确
B.错误
[单项选择]人参不具有的功效是（）
A. 补肺气
B. 补脾气
C. 补元气
D. 生津安神
E. 补气利水
[单项选择]下列有关问卷调查，叙述错误的是（）。
A. 是用书面提出问题，请被调查者用书面回答问题，进行搜集调查资料的一种研究方法，又称书面调查
B. 问卷设计需要写好问卷导语，即简要写明问卷的目的、意义和要求
C. 问题设计题目要具有科学性、合理性和针对性
D. 对于被调查者常常对问卷调查采取敷衍的态度，随笔填一下答案，有的甚至不填这一现象，研究者没有任何办法
