热门试题:
[单选题]KP51—1 的动作范围值为( )kPa。
A.750~900
B.750—825
C.825—900
[单选题] 规定变电设备检修周期的文本是( )。
A.检修规程
B.工艺流程卡
C.生产组织程序
D.安规
[多项选择]造成沥青混合料摊铺离析的原因有( )。
A. 集料级配不合
B. 分料器中料位过高
C. 分料器中料位过低
D. 摊铺宽度过大
E. 摊铺宽度过小分料器旋转速度不均匀分料器旋转速度过于均匀
[单选题]萃取剂的选择性系数越大,说明该萃取操作越( )。
A.容易
B.不变
C.困难
D.无法判断
[多项选择]全球变暖会使()等自然灾害加重。
A. 雪灾
B. 高温
C. 热浪
D. 热带风暴
[单项选择]主轴装置轴承中的润滑脂应()全部更换一次。
A. 一月
B. 一季度
C. 一年
D. 不定期
[单项选择]患过敏性疾病和寄生虫病时,可增多的是()。
A. 单核细胞
B. 中性粒细胞
C. 嗜碱性粒细胞
D. 嗜酸性粒细胞
E. 淋巴细胞
[单项选择]
Changes in the volume of unemployment are governed by three fundamental forces: the growth of the labor force, the increase in output per man-hour, and the growth of total demand for goods and services. Changes in the average hours of work enter in exactly parallel fashion but have been quantitatively less significant. As productivity rises, less labor is required per dollar of national product, or more goods and services can be produced with the same number of goods. If output does not grow, employment will certainly fall; if production increases more rapidly than productivity (less any decline in average hours worked)employment must rise. But the labor force grows, too. Unless gross national product( total final expenditure for goods and services corrected for price changes) rises more rapidly than the sum of productivity increase and labor force growth (again modified for any change in hours of work), the increase in employment will be inadequate to absorb the growth in the la
A. the rate of unemployment grew
B. the rate of employment rose
C. labor force growth exceeded final expenditure for goods
D. full employment was attained
[判断题]2.8 持有外国人永久居留证的外国人办理机动车驾驶证业务的,外国人的身份证明是其外国人永久居留证。
A.正确
B.错误
[单选题]马克思主义认为,文化是一个( )或一个民族生活方式的总和,由民族语言、民族传统等构成民族文化的特征。
A.社会
B.国家
C.阶级
D.群体
[单选题]气密性试验时,如果发现焊接或连接部位有泄露,需( )。
A.马上修补
B.带压修补
C.泄压后修补
D.开车后修补
[单选题]下列关于核心产品的说法错误的是()。
A.行业核心产品是特定行业为害户提供具有独特价值的、竞争对手在短时间内无法模仿的各种知识、技能、技术、管理等要素的有机结合
B.当前我国物业管理的行业的核心产品定位于秩序维护、清洁绿化、物业维护等服务项目
C.核心产品代表行业的核心竞争力
D.传统物业管理与资产管理相结合而构成的核心产品是物业管理行业的核心竞争力所在
[单选题]搭设高度()及以上的落地式钢管脚手架工程为危险性较大的分部分项工程。
A.18m
B.24m
C.36m
D.48m
[单选题]反映每股普通股所代表的账面权益的财务指标是( )。
A.净资产倍率
B.每股净收益
C.市盈率
D.每股净资产
[单项选择]根据《民法通则》,关于代理的说法,正确的是( )
A. 一代理人在授权范围内实施代理行为的法律后果自被代理人承担
B. 代理人可以超越代理权实施代理行为
C. 被代理人对代理人的切行为承担民事责任
D. 代理是代理人以自己的名义实施民事法律行为
[单选题]关于刮雨器,说法错误的是()。
A.刮雨器采用的是曲柄摇杆机构。
B.工作额定电压为DC220V。
C.工作额定功率为180W。
D.控制盒接受开关组成的指令,控制马达的运行,实现刮雨器快速、慢速、间歇和停止功能。
E.略
F.略
G.略
H.略
[单选题]电台操作使用的正确程序是( )。(易)(基础知识)
A.开机-调整信道-通话-拆线关机
B.调整信道-开机 -通话-拆线关机
C.开机-通话- 调整信道-拆线关机
D.开机-通话-拆线关机-调整信道
E.调整信道-通话-开机-拆线关机
[单选题]根据《生产安全事故报告和调查处理条例》,5000万元以上1亿元以下直接经济损失的生产安全事故属于( )。
A.一般事故
B.较大事故
C.重大事故
D.特别重大事故
[判断题]在行政诉讼中, 人民法院既不立案, 又不作出不予立案裁定的,当事人可以向上一级人民法院起诉。
A.正确
B.错误
[单选题]自动闭塞区段,发车进路信号机发生故障时发出列车,列车进入闭塞分区的行车凭证为( )。
A.红色许可证
B.路票
C.绿色许可证
[单项选择]通过公路运输剧毒化学品的,托运人应当向目的地的县级人民政府公安部门申请办理___。
A. 交通运输许可证
B. 剧毒化学品公路运输通行证
C. 道路占用证
[多选题]低压电气带电工作应使用的防护用具和方法有( )。
A.保持对地绝缘
B.手套
C.护目镜
D.旁路
[单选题]施工现场中,工作面边沿无围护设施或围护设施的高度低于( )时,这类作业称为临边作业。
A.60cm
B.80cm
C.100cm
D.120cm
[判断题]专用变压器供电、采用低压计量的农业用电户,免收变压器损失电量电费。
A.正确
B.错误
[填空题]The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, ________ this is largely because, ________ animals, we stand upright. This means that our noses are ________ to perceiving those smells which float through the air, ________ the majority of smells which stick to surfaces. In fact, ________ , we are extremely sensitive to smells, ________ we do not generally realize it. Our noses are capable of ________ human smells even when these are________to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, ________ others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate ________ smell receptors in the nose. These receptors are the cells which sense smells and send ________ to the brain. However, it has been found that even people insensitive to a certain smell ________
A. A.when
B. since
C. for
D.whereas
[单选题]第一次国共合作建立后,全国范围大革命风暴兴起的标志是()
A.护法战争
B.五四运动
C.北伐战争
D.五卅运动
[单项选择]How many years will it be before the world runs out of oil The question is far from an academic exercise. This year oil hit a near record high of $40 a barrel, and Royal Dutch/Shell Group downgraded its reserves by 4.5 billion barrels.
While consumers pay for perceived shortages at the pump, scientists and economists struggle to reach consensus over "proven oil reserves," or how much oil you can realistically mine before recovery costs outstrip profits. Economist Leonardo Maugeri fired up the debate that accused the "oil doomsters" of crying wolf.
Oil pessimists estimate that maximum oil production around the globe will peak in 2008 as demand rises from developing economies such as China. "If you squeezed all the oil in Iraq into a single bottle, you could fill four glasses, with the world consuming one glass of oil each year," says a physicist. "We’ve consumed nine bottles since oil was discovered, and we have another 9 or 10 in the refrigerator. How many more are there Some
A. How long the oil age will last is simply an academic question.
B. The oil price this year set a new record.
C. Shell Group reduced its reserves to 4.5 billion barrels this year.
D. Economists disagree with one another on how much oil you can realistically mine.
[单项选择]人体不同部位同时分别触电及两相带电体称为()。
A. 跨步电压触电
B. 单相触电
C. 两相触电
D. 静电触电
[多选题]高处作业人员上下杆塔必须沿脚钉或爬梯攀登,必须正确使用( ),水平移动时应正确使用水平拉锁或( )。
A.A.连接器
B.B.攀登自锁器
C.C.安全网
D.D.势能吸收器
E.E.临时扶手
[单项选择]患者,女,52岁。昨晚参加宴会后回家看电视,1小时后觉得右侧头痛与右眼肿胀,视力下降,深夜头痛加剧且眼红,晚上与今晨恶心、腹胀、呕吐3次,右眼视物更不清,下午来急诊。检查:右眼视力为0.05,针孔视力无提高,指测右眼压T2,混合充血+++,角膜雾状浑浊++,前房很浅,瞳孔5.5mm大,椭圆形,对光无反应,未见有后粘连,晶状体前囊下见灰白斑点状浑浊,眼底模糊,可见乳头充血。左眼视力1.2,除周边前房较浅外未见明显异常。初步诊断应考虑()。
A. 眼科急症
B. 急性胃肠炎
C. 食物中毒
D. 特发性高血压
E. 脑血管意外
[多项选择]《行政诉讼法》规定,提起行政诉讼,应符合下列条件
A. 原告是认为具体行政行为侵犯其合法权益的公民、法人或其他组织
B. 有明确的被告
C. 有具体的诉讼请求
D. 有具体的事实根据
E. 属于人民法院受案范围和受诉人民法院管辖
[判断题]调车作业中,表示已接受调车长所发出的手信号时,机车鸣示一短声。( )
A.正确
B.错误
[单选题]在Word的编辑状态下,选取文档中的一行宋体文字后,先设置粗体,再设置斜体,则所选取行的文字变为.。
A.宋体、粗体.
B.粗体、斜体
C.宋体、斜体.
D.宋体、粗体、斜体
[判断题]在正常情况下,船长应提前 24 小时将预计开航时间通知轮机长( )
A.正确
B.错误
[单选题]质量手册应包括或注明含()在内的支持性程序,并概述管理体系中所用文件个架构
A.技术程序
B.技术文件
C.软件程序
D.硬件程序