热门试题:
[单选题]支模、粉刷、砌墙等各工种进行上下立体交叉作业时,不得在( )方向上操作。
A.同一垂直
B.同一横面
C.垂直半径
D.不同垂直
[单选题]到( )年规划总里程10165公里(含展望线路),形成“五纵十横”高速公路网。
A.2035年
B.2025年
C.2022年
D.2021年
E.2045年
[单选题]用户管辖的线路要求停电时,应得到()的书面申请,经批准后方可停电,并做好安全措施。
A.用户工作负责人
B.用户工作票签发人
C.用户单位主管领导
D.用户停送电联系人
[单选题]假定单元格D3中保存的公式为=B3+C3,若把它移动到E4中,则E4中保存的公式为____。
A.=B3+C3
B.=C3+D3
C.=B4+C4
D.=C4+D4
[判断题]电力电缆工作前,应核对电力电缆标志牌的名称与工作票所填写的是否相符以及安全措施是否正确可靠。
A.正确
B.错误
[多项选择]按《工程建设国家标准管理办法》,对编号为“GB50203--2011”的国家标准描述正确的是()。
A. 属于工程建设强制性国家标准
B. 属于工程建设推荐性国家标准
C. 该标准2011年施行
D. 该标准2011年批准颁布
[判断题]地铁暗挖隧道施工,当地下水位较高时,无需先行进行降水施工,再进行隧道开挖。
[单项选择]营业窗口服务人员当有材料递交给客户时,应使用()递单。
A. 单手
B. 双手
C. 左手
D. 右手
[单项选择]()是描述系统中在某一时刻,一组对象以及它们之间关系的图形,其可以看作是类图在系统某一时刻的实例。
A. 组件图
B. 类图
C. 对象图
D. 部署图
[单选题]下列关于非线性相关的计量系数的说法,不正确的是( )。
A.秩相关系数采用两个变量的秩而不是变量本身来计量相关性
B.坎德尔系数通过两个变量之间变化的一致性反映两个变量之间的相关性
C.秩相关系数和坎德尔系数能够刻画两个变量之间的相关程度
D.秩相关系数和坎德尔系数能够通过各变量的边缘分布刻画出两个变量的联合分布
[单选题]根据判断故障方式的不同,分段器可分为电压—时间型分段器和( )两类。
A.过压脉冲计数型分段器
B.电压—功率型分段器
C.电流—时间型分段器
D.过流脉冲计数型分段器
[多选题]属于救援三角架维护保养内容的有( )。
A....救援三角架是起重设备,必须每月由专门人员进行检查,每次使用前要检查吊索是否能正常的绕在铰轮上;
B....定期检查吊索的连接接头是否足够牢固;
C....绞盘上的吊索在放开时需留有三至四圈,以确保吊索不滑落;
D....救援三角架应存放在干燥处,定期加润滑油,不得与酸碱等腐性液体存放在一起。
[单选题]40.莫菲氏征阳性常见于
A..急性阑尾炎
B..急性胆囊炎
C..急性胆管炎
D..急性胰腺炎
E..急性胃肠炎
[单选题]唐传生产L-阿拉伯糖的生产工艺
A.酸碱法提纯
B.化学方法合成
C.生物发酵法
D.压榨后精炼
[单项选择]IC加油卡不包括()。
A. 上级公司发行的专用IC加油卡
B. 与上级公司有契约关系的其他行业发行的专用加油卡
C. 银行卡
D. 员工卡和维修卡
[多项选择]需要和丹毒进行鉴别诊断的疾病有( )
A. 接触性皮炎
B. 癣菌疹
C. 银屑病
D. 蜂窝织炎
[单项选择]锅炉水循环的循环倍率越大,水循环越( )。
A. 危险
B. 可靠
C. 无影响
[多选题]在( )进行电焊工作,必要时应在周围设挡光屏,防止弧光伤害周围人员的眼睛。
A.A.室内
B.B.露天
C.C.室外
D.D.阳光下
[不定项选择题]A.磷脂
A.分枝菌酸
B.结核菌素
C.索状因子
D.硫酸脑苷脂
E.能引起皮肤迟发型超敏反应的物质是
[判断题]每个正式党员都享有选举权和被选举权,受撤销党内职务处分的党员除外。( ) 留党察看
A.正确
B.错误
[单项选择]将会计凭证分为原始凭证和记账凭证两大类的分类标准是______。
A. 填制人员和程序
B. 填制程序和方法
C. 填制格式和手续
D. 填制程序和用途
[单项选择]在幻灯片放映时要临时涂写,应该()。
A. 按住右键直接拖曳;
B. 右击,选“指针选项”/“箭头”;
C. 右击,选“指针选项”,选“笔型”及“颜色”;
D. 右击.选“指针选项”/“屏幕”;
[单选题].沿海地区比内陆地区高发的细菌性食物中毒是
A.沙门菌食物中毒
B.肉毒杆菌食物中毒
C.致病性大肠杆菌食物中毒
D.副溶血性弧菌食物中毒
E.葡萄球菌食物中毒
[单选题]装载活动物的车辆与乘坐旅客的车辆应隔离( )辆以上。(应知应会-危规-附件10)
A.1
B.2
C.3
D.4
[单项选择]Food And Cancer
Medical experts have suspected for many years that there is a strong link between what a person eats and cancer._________(46). A team of Chinese and American scientists did the study. They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study. They were from the northern central Chinese area of Linxian. Most of them took vitamins and minerals every day for five years.
_________(47). Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate. Researchers divided those into eight groups. Seven of the groups received different mixtures of vitamins and minerals daily. The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed._____
[单项选择]据国家发改委的信息,2007年房地产市场调控工作将着力调整供应结构,切实增加普通商品住房供应。“着力调整住房供应结构,切实增加普通商品住房供应”有助于()①保障房地产市场健康有序发展②商品房供应多元化发展③更好地解决普通城市居民的住房问题④有效避免社会资源的浪费⑤杜绝哄抬、炒作房价
A. ①②③
B. ①④⑤
C. ①②③④
D. ②③④⑤
[单选题]AA019 在常温常压下,天然气的爆炸限为( )。
A.5%~10%
B.5%~15%
C.4%~74.2%
D.58%
[单选题]矿山救护队员在灾区工作1个呼吸器班后,应至少休息( ),才能重新佩戴氧气呼吸器。
A.4h
B.8h
C.6h
[单项选择]长3.5寸,针头如黍粟状,圆而微尖的是:
A. 少商 尺泽
B. 大椎 曲池
C. 十二井穴 十宣
D. 厉兑 内庭
E. 外关 鱼际
[不定项选择题]共用题干
第三篇
Hurricane(飓风)Katrina
A hurricane is a fiercely powerful , rotating(旋转的)form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions.Over its lifetime,one of these can release as much energy as 10,000 nuclear bombs.
The seed for hurricane formation is a cluster(聚集)of thunderstorm over warm tropical waters. Hurricanes can only form and be fed when the sea一surface temperature exceeds 27℃and the surrounding atmosphere is calm. These requirements are met between June and November in the northern part of the world.
Under these conditions, large quantities of water evaporate (蒸发)and condense(冷凝)into clouds and rain一releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.
When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area. This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm. Cold air falls back to the ocean surface through the eye and on the outside of the storm.
Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the U.S.,leaving a disaster zone of 90,000 square miles in its wake(尾迹)—almost the size of the U.K.Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian(人道主义的)crisis of a scale not seen in the U. S. since the Great Depression.The cost of the damage may top$100 billion.
The eye of a hurricane refers to its_______.
A.lower part
B.rotating part
C.calm central part
D.most violent part
[单项选择]液压马达的容积效率与()有关。
A. 油液的泄漏
B. 油液的污染
C. 摩擦副的摩擦损失
[判断题]电场的强弱用电场强度表示,符号是E,单位为V/m。
A.正确
B.错误
[单选题]改革开放之后我国安全生产的三个阶段中创新发展阶段是从哪一年到哪一年
A.2003年以来
B.2004年以来
C.2002年以来
D.2005年以来
[单项选择]恶性高血压()
A. 患者血压明显升高,体检:血压200/130mmHg(26.6/16.9kPa),眼底出血渗出、视乳头水肿,实验室报告:肾功能不全
B. 患者血压明显升高,伴有剧烈头痛、呕吐、抽搐
C. 患者平日有心悸、胸痛、劳力时气促、起立或运动时眩晕,体检:胸骨左缘第3-4肋间可闻较粗糙的喷射性收缩期杂音,屏气时杂音增强
D. 患者一周前出现发热,全身无力,现自觉心悸、胸闷,体检:心率120次/分,偶闻室性早搏,实验室回报CPK、GOT(AST)、LDH增高
E. 患者气急,端坐呼吸,体检:心脏扩大,听诊可闻及第四心音奔马律,双下肢浮肿,超声心动图报告:左心室腔明显扩大