题目详情
题目详情:

[单项选择]频谱多普勒技术可以用来测量多种数据,下列哪一种数据是不能测量的:
A. 收缩期血流速度
B. 搏动指数(PI)
C. 阻力指数(RI)
D. 血流平均速度(Vm)
E. 血管的内径

热门试题:

[单项选择]施工组织设计以及达到一定规模的危险性较大的分部分项工程的专项施工方案由()组织有关人员进行编制。
A. 工程项目技术负责人
B. 施工单位技术负责人
C. 项目负责人
D. 施工单位负责人
[单选题]电加热器上的调温开关的设定点与蒸汽加热自力式温度调节器的温度相比()。
A.没有具体要求
B.相同
C.略低一些
D.略高一些
[多选题] 轴承座振动有( )原因。
A. 机械设备不平衡
B. 轴承损坏
C. 缺油
D. 基础不稳固
E. 联轴器找正不好
[单选题]处理拒爆时,在距炮眼( )M以外另打平行炮眼,其深度可稍大于拒爆炮眼深度。
A.0.1
B.0.2
C.0.3
D.0.4
[多选题]电焊机必须“(  )”,并装有随机开关,焊外壳必须有良好的接地。
A.A-一机
B.B-一闸
C.C-一漏
D.D-一箱
[单选题]A型扫描显示中,从荧光屏上直接可获得的信息是()。
A.缺陷的性质和大小
B.缺陷的形状和取向
C.缺陷回波的大小和超声传播的时间
D.以上都是
[单项选择]中频电疗法采用的电流频率为()
A. 100Hz~10kHz
B. 100Hz~100kHz
C. 1kHz~10kHz
D. 1kHz~100kHz
E. 1kHz~1000kHz
[单项选择]女性,39岁,因子宫腺癌行子宫全切术,术中不顺利,历时2小时,回室后,护士发现留置的导尿管中尿量少,而一次性中单上因潮湿须垫会阴垫。考虑因下列哪项原因所致()
A. 留置的带气囊的导尿管移位
B. 术后病人汗多
C. 漏尿而致
D. 不自主排尿
E. 自主排尿
[单选题]USB延长线3.5M 单位 条 批发价( )
A.5.00
B.10.0
[单选题]《危险化学安全管理条例》规定,剧毒化学品道路运输通行证管理办法由国务院( )部门制定。
A.安监
B.公安
C.质检
[判断题]市面上销售的牛奶及酸奶均使用不透光材料包装,主要是为防止结合型核黄素的损失。
[判断题]移动供气源使用过程中,注意避免长管与尖锐物体或腐蚀性介质接触摩擦,以免滑坡或服饰胶管而造成空气泄漏。( )
A.正确
B.错误
[单选题]____是近代以来中华民族最伟大的梦想。
A.富国强兵
B.民族独立
C.实现中华民族伟大复兴
D.全面建成小康社会
[判断题]自动闭塞区间同方向相邻的两架色灯信号机间,以该线上的通过信号机柱的中心线为闭塞分区的分界线。
A.正确
B.错误
[单选题]许某.杜某等人冒充某派出所联防队员,到某村抓赌,没收赌资1万余元,许某.杜某的行为构成()。
A.诈骗罪
B.招摇撞骗罪
C.抢劫罪
D.敲诈勒索罪
[单选题]片面抗战路线和全面抗战路线的最根本区别在于( )。
A.要不要政党领导抗战
B.要不要政府参与抗战
C.要不要军队参加抗战
D.要不要发动和组织人民群众抗战
[单项选择]电动打磨机利用动力源提高美甲打磨目的是为()
A. 降低劳动强度
B. 省时
C. 方便
[判断题]曲线上明桥面的线路外轨超高,可采用用楔形枕木设置。
A.正确
B.错误
[多项选择]获取审计证据的具体方法有()。
A. 检查与监盘
B. 观察与计算
C. 查询与函证
D. 分析性复核
[多选题] 技术资料验收时,应有互感器的( ),授权电能计量技术机构的报告。
A. 安装使用说明书
B. 出厂检验报告
C. 合格证
D. 其他技术资料
[判断题]蓄电池的电解液不是导体。
A.正确
B.错误
[多项选择]2007年3月12日向宁购置了一台奇瑞“东方之子”型轿车,向保险公司投保当年的车辆损失险,保险金额为30万元。其子向小飞因经常乘坐他人及向宁的车,知道一些驾车常识。4月20日,向小飞有病住院,向小飞偷拿了其父的车钥匙驾车外出游玩,7g,嗅翻车。小飞受伤,轿车完全报废。 下列关于向宁轿车毁损赔偿问题表述正确的是( )。
A. 向宁无权请求保险公司赔偿
B. 向宁有权请求保险公司予以赔偿
C. 保险公司如果赔偿,不可以对向小飞行使代位请求赔偿的权利
D. 保险公司如果赔偿,可以对向小飞行使代位请求赔偿的权利
[判断题]2.96 非营运小微型载客汽车办理车辆转籍的,申请人可以直接到车辆迁入地车辆管理所申请,迁入地车辆管理所查验车辆时发现车辆识别代号影像不清晰的,应当退档。
A.正确
B.错误
[判断题]通过传真送达的工作票,其工作许可手续应待正式工作票送到后履行。
A.正确
B.错误
[单项选择] 第三篇   Small But Wise   On December 14, NASA1 blasted a smallbut mighty telescope into space. The telescope is called WISE and is about aswide around as a trashcan. Don’t let its small size fool you: WISE has apowerful digital camera, and it will be taking pictures of some the wildestobjects2 in the known universe,including asteroids, faint stars, blazing galaxies3 and giant clouds of dustwhere planets and stars are born.   “I’mvery excited because we’re going to be seeing parts of the universe that wehaven’t seen before, ” said Ned Wright, a scientist who directs the WISEproject.   Since arriving in space, the WISEtelescope has been circling the Earth, held by gravity in a polar orbit4( thismeans it crosses close to the north and south poles with each lap5). Its camerais pointed outward, away from the Earth, and WISE will snap a picture of adifferent part of the sky every 11 minutes. After six months it will have takenpictures across the entire sky.   The pictures taken by WISE w
A. The WISE telescope can catch and take pictures of them.
B. They do not reflect light that reaches them.
C. They float through spacegiving off visible light.
D. They are invisible to ordinary cameras.
[单项选择]当期货市场上不存在与需要保值的现货一致的品种时,人们会在期货市场上寻找与现货()的品种,以其作为替代品中进行套期保值。
A. 在功能上互补性强
B. 期限相近
C. 功能上比较相近
D. 地域相同
[判断题]中国企业人力资源管理模式特点之一,自我中心式非理性化家族管理模式。
[多项选择]寒邪的性质和致病特点有 ()
A. 寒为阴邪,易伤阳气
B. 寒主收引
C. 寒性凝滞
D. 其性重浊
E. 其性趋下
[判断题]离合器分离不彻底主要表现为:发动机怠速运转,完全踩下离合器踏板,挂挡困难或根本挂不上挡,伴随有齿轮撞击声。( )
A.正确
B.错误
[不定项选择题]共用题干 第三篇

The World Cup

This summer's World Cup competition will see teams competing to play the world's best
football.But the football they play will not all be of the same kind.The fans expect different
styles of play from Brazil,Germany, or Italy.
What makes Brazilian football Brazilian?Our style of playing football contrasts with the
Europeans because of a combination of qualities of surprise,accuracy and good judgment.
This style has won Brazil five world cups.Yet many Brazilian fans only count four of these
victories.In 1994,the team abandoned this style for modern,scientific training and tactics.
The team won the cup,but in a boring way.
The Italians think differently."To many Italians,the score 0-0 has a glorious quality,
suggesting perfection,"says the British football writer Simon Kuper.In the Italian culture,
the idea of face is very important.This is why Italian teams are traditionally built around
strong defences.The Dutch footballer Johan Cruyff once said that Italian teams never
exactly beat you.It's just that you often lose to them.
In Holland,there is a tradition of decision making through argument and discussion.It is
a society where everybody is expected to have a point of view."Every Dutch player wants
to control the game,"says Arnold Muhren."You play football with your brains and not your
feet."
"A Dutch player argues,"says Simon Kuper."An English player obeys his superior.
He is a soldier."The qualities valued in English football are military-strength,aggression
and courage.This can make for exciting football.But it also means that the English find it
difficult to use skillful players.David Beckham is usually criticized for his failure to defend一
despite the fact that he is an attacker.
If the English like to fight,the Germans like to win.In recent years,Germany has tried
to change its image as a country of ruthless efficiency and a desire for victory at all costs.
But Germans are quite happy for these qualities to remain in their national football team.
"Football is a simple game,"Gary Lineker once said."You kick a ball about for ninety
minutes and in the end the Germans win."
It's difficult to predict who will win this year's World Cup.There is no strong favorite.But
a look at the track record of previous winners shows that it is the nations with the strongest
national characteristics in the football that perform best.It seems that you need to know
where you come from if you want to get to the top. Which of the following is NOT a characteristic of the Brazilian style of playing football?
A.Accuracy.
B.Surprise.
C.Good judgment.
D.Ruthless efficiency.
[单选题]经纬仪可以测量( )。
A.方位角
B.磁方位角
C.水平角
D.象限角
E.略
F.略
G.略
H.略
[单选题]在靠近电线或开关等电气设备处堆放货物时,距离不得少于( )。
A.0.005m
B.1m
C.1.5m
D.2m
[单选题]Oracle中,下列(  )命令用来手工切换日志。
A.alter system switch logfile
B.alter database switch logfile
C.alter system checkpoint
D.alter database checkpoint
[判断题] 在电路中,既有电阻的并联,又有电阻的串联,这样的电路成为混联电路
A.正确
B.错误
[单项选择]音乐是一个整体,必须加强对()的控制才能保证整体结构的严谨。
A. 群体
B. 演奏者
C. 作曲家
D. 细节
[单选题]:开办AA+级债券投资、以票据为标的资产的资产回购(返售)、非保本型浮动收益型理财投资等业务的法人机构需具有专门的资金业务岗位且业务人员需()年(含)以上资金业务工作条件。
A.1
B.2
C.3
D.4
[判断题]一个二极管被击穿短路后,1RD将首先熔断,有时出会出现2RD同时熔断现象( )
A.正确
B.错误
[单项选择]10个月男婴,人工喂养(为羊乳6个月后糊,但未加肉类),面色苍白3个月,近1周嗜睡,食欲差。查体:虚胖,头发稀疏、微黄,面色苍黄,巩膜轻度黄染,肝肋下0.5cm,脾未触及。最佳治疗是()
A. 口服二价铁
B. 口服三价铁
C. 注射铁剂
D. 注射叶酸
E. 注射维生素B并口服叶酸

我来回答:

购买搜题卡查看答案
[会员特权] 开通VIP, 查看 全部题目答案
[会员特权] 享免全部广告特权
推荐91天
¥36.8
¥80元
31天
¥20.8
¥40元
365天
¥88.8
¥188元
请选择支付方式
  • 微信支付
  • 支付宝支付
点击支付即表示同意并接受了《购买须知》
立即支付 系统将自动为您注册账号
请使用微信扫码支付

订单号:

截图扫码使用小程序[完全免费查看答案]
请不要关闭本页面,支付完成后请点击【支付完成】按钮
恭喜您,购买搜题卡成功
重要提示:请拍照或截图保存账号密码!
我要搜题网官网:https://www.woyaosouti.com
我已记住账号密码