热门试题:
[单选题]( )是一种移位配置的基本视图。
A.三视图
B.斜视图
C.剖面图
D.向视图
[多项选择]下列性能中属于工程材料使用性能的是( )。
A. 物理性能
B. 化学性能
C. 机械性能
D. 铸造性能
[单选题]口服药物的药物的主要吸收部位是
A.口腔
B.胃
C.小肠
D.大肠
E.盲肠
[多选题]市场经济的一般特征包括( )
A.平等性
B.竞争性
C.开放性
D.法制性
[单选题] 卷烟品类宽度的基本布局是越往高端,品类宽度应( )。
A.越宽
B.越窄
C.不变
D.多变
[单项选择]类Panel默认的布局管理器是【 】
A. GridLayout
B. BorderLayout
C. FlowLayout
D. CardLayout
[判断题](判断题)采煤工作面回采前必须编制作业规程。情况发生变化时，必须及时修改作业规程或者补充安全措施。
A.正确
B.错误
[单项选择]有一急性再生障碍性贫血患者，突然出现头痛、头晕、视物模糊、呼吸急促，你考虑该病人发生了什么情况
A. 高血压危象
B. 脑动脉痉挛
C. 脑梗死
D. 颅内出血
E. 高血压脑病
[判断题]离合器压盘弹簧与离合器打滑无关。( )
A.正确
B.错误
[单项选择]Broadband technology is seen as the key to the new digital economy.
In this rapidly changing world, media and technology information can be sent via phone calls and downloads like music, graphics, business information or films.
The simpler the information, the smaller the package and the narrower the bandwidth needed to deliver it.
Broadband is used for high speed Internet connections at a fixed monthly rate. It turns an exciting telephone line into a high speed digital line capable of carrying data up to 40 times conventional modem speeds.
Any download is available at the click of a mouse-there is no dial-up as there is with standard Internet Service Providers.
For home owners and families there are many advantages. One of the most important is simultaneous (同时的) access to both telephone lines and the Internet. No wait and no delay.
For businesses, broadband can improve customer relations and provide direct access to corporate e-malls and databases. Entir
A. Family members.
B. College students.
C. Both home owners and businessmen.
D. Only businessmen and their partners.
[单项选择]撑窝的深度在软岩石中不得小于（）mm。
A. 50
B. 80
C. 100
[多项选择]资源基础理论认为，人力资源管理会（）对产生巨大影响。
A. 物资资源
B. 组织资源
C. 财务资源
D. 设备资源
E. 人力资源
[单选题]（ ）是指用户流通中心生产企业之间利用通讯网络和终端设备进行订货作业和订货信息交换的系统
A.EOS
B.EDI
C.GPS
D.MRP
[单项选择]对于新生儿出血，宜选用：（）
A. 维生素K
B. 氨基己酸
C. 氨甲苯酸
D. 氨甲环酸
E. 抑肽酶
[单选题]( )的功用就是将蓄电池的电能转变为机械能，产生转矩，起动发动机。
A. A、起动系
B.B、润滑系
C.C、传动系
D.D、发电机
[判断题]双向换新风空调器中有2个换气风扇，有1个换气电机。
[不定项选择题]共用题干
ADHD Linked to AIF Pollutants
Children have an increased of attention problems,seen asearly as grade school,if their no-ses inhaled（吸入）a certain type of air pollution when they were pre, ant.That,5 the finding ofa new study.Released when things aren't burned completely,this pollution 15 known as polycyclic aromatic hydrocarbons,or PAHs.Tlle higgest sources of these PAHs:the bunling of fossil fuels, wood and trash.
Frederica Perera works at Columbia University,5 Mailman School of Public Health in New York City.She researclies how exposure to things in the environment affects children,5 health.In a new study,she and her team studied the exposure to air pollution of 233 nonsmokingpre,ant women in New York City.Because burning tobacco can spew（排放）PAHs into the air and lungs, Perera,5 team focused on nonsmokers.The researchers wanted to probe（探查）other sources of PA Hs,ones that,5 would have been hard for an individual to avoid.
The team started by testing the blood of each woman during pregnancy.The reason:Any PA H 5 in a woman's blood would also be available to the baby in her womb．Nine years later,the researchers investigated signs of attention problems in those children,now age 9 .They asked each child’s mother a series of questions.These included whatever her child had prohlems doing things that needed sustained（长期的）mental effort,such as homework or games with friends.The sci-entists also asked if the kids had trouble following instructions or made frequent,careless mis-takes.All of these can be symptoms of a disorder called Attention Deficit Hyperactivity Disorder, or ADH
D.About one in U.5.children has ADH
D.
Among the women studied,traffic and home heating were the primary sources of air pollution exposure,Pereraand her team suspect.Some of these women had low levels of PAHs in their blood.others had high levels.Those with high levels were five times as likely to have children who showed attention problems by age 9 .The new findings were published November 5 in the journal PLOS ON
E.
Traffic and home heating were considered to be the biggest sources of PAHs for the subjects in the research.
A.Right
B.Wrong
C.Not mentioned
[单选题]I类下滑角变化应小于（）
A.7.5%θ
B.4%θ
C.3.75%θ
D.2%θ
[填空题]汽温过高不但加快了金属材料的（ ），还会使过热器、蒸汽管道和汽轮机的高压部件等产生额外的（ ），（ ）设备的使用寿命
[判断题]《局铁路旅客运输服务质量规范》现场也可根据旅客状态和是否需要帮助来判断是不特殊重点旅客。
A.正确
B.错误
[单项选择]某男性铸工，工龄10年，近来有咳嗽，一过性胸痛等表现，胸片显示两肺肺纹理增多增粗，肺门增宽，两侧下肺存在密集度1级的圆形小阴影，给予尘肺分级诊断应为（）
A. 0+
B. Ⅰ
C. Ⅰ+
D. Ⅱ
E. Ⅱ+
[单选题]个人洗消帐篷的维护保养及注意事项描述错误的是( )。
A.尽量选择磨损较小的场地搭设
B.帐篷存放2年后,需要整体检查。
C.使用中性温和的肥皂清洗。
D.为利于废水的排出,在保障安全稳定的前提下,帐篷最好搭设在稍有斜度的地面上。
[单项选择]某机床制造厂喷漆车间女工，年龄28岁，工龄5年，近期发现月经血量增多。化验WBC数量4000×109/L。
导致该女工月经异常的有害因素是
A. 苯
B. 二硫化碳
C. 噪声、振动
D. 铅
E. 三氯乙烯
[单选题]司马光看到小孩掉入水缸，不是按照常规让人脱离水，而是打破水缸，让水脱离人；数学家高斯做级数连加，不是一个个逐次累计，而是创造性地运用一种新的程序来计算。从哲学上看，他们解决问题的方法给我们的共同启示是( )
A.分析问题、解决问题要有创新精神
B.想问题、办事情要善于抓住机遇
C.发挥主观能动性偶尔可以背离客观规律
D.只要充分发挥主观能动性，问题就能解决
[单选题](单选题)人体直接接触带电设备或线路中的一相时,电流通过人体流入大地,这种触电现象称为()触电。
A.单相
B.两相
C.三相
[多选题]( )不能作为存放食用油的容器。
A.铁桶
B.铜壶
C.铅罐
D.镀锰容器
[单项选择]患者咳嗽痰少，痰中带血或反复咳血，血色鲜红，口干咽燥，颧红，潮热盗汗，舌质红，脉细数。其治法是
A. 润燥止咳，宁络止血
B. 滋阴润肺，凉血止血
C. 养阴清肝，凉血止血
D. 养阴润燥，化瘀止血
E. 清热润肺，化瘀止血
[单项选择]下列哪项是恶性高血压病的肾脏特征性病变
A. 肾小球纤维化
B. 肾细动脉壁纤维蛋白样坏死
C. 肾小叶间动脉内膜增厚
D. 肾小球毛细血管内血栓形成
E. 肾小管上皮变性
[多选题]沃家云视PC客户端可以支持以下哪些功能？
A.PTZ控制
B.语音对讲
C.查看云录像
D.关闭摄像头
E.控制其他智能家居
[单选题]调车人员交接班时，按作业分工认真执行包线检查，实行（）交接。
A.对号
B.对口
C.面对面
D.登记
[单项选择]GFM-500Ah电池，1HR放电终止电压1.75V/单体，放出容量（）。
A. 250Ah
B. 260AH
C. 275AH
