热门试题:
[单项选择]若根尖片表明右上中切牙已经存在明显移位情况,未见牙折,应采用的治疗方法是
A. 不作特殊处理
B. 在现有位置上固定患牙
C. 局麻下将患牙复位,再与邻牙固定
D. 上中切牙复位固定,再行上中切牙根管治疗
E. 拔除右上中切牙,将左上中切牙与邻牙固定
[多项选择]某国驻华公使A驾车返回使馆时,发生交通事故,致我国公民B受伤,公安机关办理案件时不能()。
A. 限制人身自由
B. 查封财物
C. 扣押财物
D. 当场制止不法行为
[单项选择]肾性骨营养不良的发病机制中下列哪一项不存在
A. 高血磷
B. 低血钙
C. 酸中毒
D. 甲状旁腺激素分泌减少
E. 1,25-(OH2)D3D3合成减少
[单选题]按照《铁路旅客运输服务质量规范》要求,电梯.天桥.楼梯悬空侧按规定设置防护装置,高度不低于( )米。
A.1.5
B.1.6
C.1.7
D.1.8
[单选题] 电费现金管理是(____)的一项主要工作。
A. 电费会计
B. 营销会计
C. 营销出纳
D. 收费员
[单项选择]If we carry out our plan with ______, we will surely achieve our goal sooner or later.
A. conditions
B. determination
C. competition
D. frowns
[单项选择]
The Computer Made Me Do It
Humanity is migrating to cyberspace. In the past five years, Americans have doubled the hours they spend online, exceeding their television time and more than tripling the time they spend reading newspapers or magazines. Most now play computer or video games regularly, about 13 hours a week on average. By age 21, the average young American has spent at least three times as many hours playing virtual games as reading. It took humankind eight years to spend 100 million hours building Wikipedia. We now spend at least 200 million hours a week playing Worm of Warcraft.
Elias Aboujaoude, a Silicon Valley psychiatrist, finds this alarming. In Virtually You, he argues that the Internet is unleashing our worst instincts. It connects you to whatever you want: gambling, overspending, sex with strangers. It speeds transactions, facilitating impulse purchases and luring you away from the difficulties of real life. It le
A. The development speed of high technology is surprisingly fast.
B. The space on earth is becoming narrow with so many people.
C. The time Americans spend online has increased remarkably.
D. Humanity itches to have exciting and challenging experiences.
[单选题]移动式或手提式电动机具与保护零线(PE线)的连接线截面积一般不得小于相线截面积的1/3且不得小于( )mm²。 (1.0分)
A. 1.0
B. 1.5
C. 2.0
D. 2.5
[判断题]行政机关在作出行政处罚决定之前,可以告知当事人作出行政处罚决定的事实、理由及依据,并告知当事人依法享有的权利。( )
A.正确
B.错误
[单选题]使用手提式风钻、电钻,操作时站立位置要适当,钻孔高度不得超过工作者( ), 不得用力过猛。
A. 头部
B. 肩部
C. 腰部
D. 腿部
[单选题]在运行的变电站及高压配电室搬动梯子、线材等长物时,应( )两人搬运,并应与带电部分保持安全距离。
A.放倒
B.直立
C.倾斜30°
D.倾斜60°
[判断题] 当发生电气火灾时,严禁用水泼灭,必须用常规酸碱和泡沫灭火器灭火。( )
A.正确
B.错误
[单项选择]肘关节后脱位伴有侧方脱位时最常合并的是()。
A. 尺骨喙突骨折
B. 尺神经损伤
C. 血管损伤
D. 侧副韧带损伤
E. 尺骨鹰嘴骨折
[判断题]瓦斯保护的主要元件为气体继电器,将它安装在变压器油箱和油枕之间的联接管道中,并要注意使气体继电器上的箭头指向变压器本体一侧。
A.正确
B.错误
[多项选择]下列各项中关于仪表管道安装的说法正确的是()。
A. 仪表管道埋地敷设时,应进行防腐处理和试压合格后方可埋入
B. 测量油类及易燃易爆物质的管道与热量表面的距离宜大于100mm,且不宜平行敷设在其上方
C. 气源管道采用无缝钢管时,应焊接连接
D. 伴热管的连接宜焊接,固定不应过紧
E. 接汽点应在供汽管的顶部
[单选题]标准装置的综合误差与被校准、检测交流采样测量装置基本误差之比不大于()
A.1/10-1/4
B.1/10-1/5
C.44571
D.44565
[填空题]LFA31355从结构特点看,同步发电机分为( )和 ( )。
[单选题]治疗要获得患者的知情同意,其实质是
A.尊重患者自主性
B.尊重患者社会地位
C.尊重患者人格尊严
D.患者不会作出错误决定
E.患者提出的要求总是合理的
[单选题]造成公路路面损坏、污染或者影响公路畅通的,可以处( )。
A.一千元以下的罚款
B.五千元以下的罚款
C.二万元以下的罚款
D.五万元以下的罚款
[判断题]带尖峰负荷的调频机组,速度变动率应选大一点。
A.正确
B.错误
[单项选择]
Trying to get Americans to eat a healthy diet is a frustrating business. Even the best- designed public-health campaigns cannot seem to compete with the tempting flavors of the snack-food and fast-food industries and their fat-and sugar-laden products. The results are apparent on a walk down any American street--more than 60% of Americans are overweight, and a full quarter of them are overweight to the point of obesity.
Now, health advocates say, an ill-conceived redesign has taken one of the more successful public-health campaigns--the Food Guide Pyramid--and rendered it confusing to the point of uselessness. Some of these critics worry that America’ s Department of Agriculture caved in to pressure from parts of the food industry anxious to protect their products.
The Food Guide Pyramid was a graphic which emphasizes that a healthy diet is built on a base of grains, vegetables and fruits, followed by ever-dec
A. public-health campaigns cannot compete with tempting flavors.
B. snack-food and fast-food industries are flourishing in the US.
C. most food in America are profoundly rich in fat and sugar.
D. fat people account for a large proportion of American population.
[单选题]一切电话中断后,单线行车按( )法。
A.书面联络
B.时间间隔
C.空间间隔
D.区间间隔
[单选题]正压式消防空气呼吸器,当压力下降至()兆帕时,残气警报器发出气笛声。
A.3~5
B.4~6
C.5~7
D.6~8
[单选题]离心泵效率最高的点成为( )
A. 工作点
B.操作点
C.设计点
D.计算点
[单项选择]级物业管理服务标准中,房屋管理要求每日巡查()次小区房屋单元门、楼梯通道以及其他共用部位的门窗、玻璃等,做好巡查记录,并及时维修养护。
A. 1
B. 2
C. 3
D. 4
[单选题]下列喉软骨成对的是( )
A.会厌软骨
B.甲状软骨
C.杓状软骨
D.环状软骨
E.喉软骨
[单项选择]治湿阻中焦,脾失健运而致脘腹胀闷、呕恶食少、吐泻乏力、舌苔白腻等症,最为适宜的药物是()
A. 砂仁
B. 草豆蔻
C. 苍术
D. 厚朴
[单选题]T10钢室温下的平衡组织为( )。
A.F+Fe3C
B.P+Fe3CII
C.F+P
D.P+Fe3C
[简答题]歌曲《听妈妈讲那过去的故事》中,唱到“我们坐在高高的什么旁边”?
[单项选择]有关子宫颈刮片的陈述,正确的是( )
A. 是早期发现子宫癌的唯一方法
B. 应该在子宫颈表面采集标本
C. 通常在月经来潮前采集标本
D. 应在宫颈外口鳞一柱状上皮交界处取材
E. 是盆腔检查前的一种常规检查
[不定项选择题]患者,男,28岁。胃脘灼热疼痛,痞胀不适,口干口苦,纳少消瘦,手足心热,舌尖红,脉细数。医师诊断为胃痛,证属气阴两虚,治以益气养阴、健脾和胃,处方药物为黄精(蒸)、党参、北沙参、玄参、乌梅、陈皮,水煎服。
若患者症见寒热错杂,最宜选配的药组是
A.附子、细辛
B.干姜、黄连
C.桂枝、花椒
D.黄芩、黄柏
E.大黄、生地黄
[判断题]防蜂服质量较重,与消防员化学防护服相近,可以作为化学防护训练服,代替化学防护服进行日常的防化训练。( )
A.正确
B.错误
[填空题]基本运行风速的主要作用是用于“()”的确定。
[单选题]由于分析仪器的性能低劣所引起的误差原因是
A.主观因素
B.化学因素
C.光学因素
D.不遵守光吸收定律
E.有色物的生成引起的影响
[单选题]合格介质桶和稀介质桶是为了( )悬浮液设置的。
A.A 储存
B.缓冲
C.储存和缓冲
D.回收
[判断题]司机在不影响作业的情况下,喝点啤酒不影响作业。(1分)
A.正确
B.错误