[单选题]简易瞬态工况法检测时,车速偏差不得在连续2秒内超差( -我要搜题网

[多项选择]在三年级《位置与方向》一课教学中，关于东南西北方位的概念，（）教学模式适合本课教学
A. 讲授式
B. 情士竟一探究
C. 操练与练习
D. 讨论学习

[判断题]国民经济可分为第一产业、第二产业、第三产业和第四产业。
A.正确
B.错误

[判断题]当轴承内圈与轴配合较紧，外圈与壳体配合较松时，可先将轴承装在轴上，然后把轴承与轴一起装入壳体中。

[多选题]除使用特殊仪器外，所有使用携带型仪器的测量工作，均应在（）进行。
A.电流互感器的二次侧
B.电流互感器的一次侧
C.电压互感器的二次侧
D.电压互感器的一次侧

[单选题]In some ways,the nine-day West Virginia teachers'strike that ended March 6 echoed the momentous labor actions that have marked the Mountain State's history.But the story also contained a plot device straight out of a cyberpunk future.A proposed change to West Virginias public worker health plan would have asked teachers to download a mobile fitness app called Go365 and earn points on it by wearing a Fitbit,a wristband that logs the wearer's heart rate,steps taken,quality of sleep,and other metrics.Those who declined,or who complied but failed to earn enough points,would face a penalty of s 500 each year The state authority scrapped the proposal but it remains a sign of the times:As employers aim to trim costs and boost productivity,workers face increasing encouragement to purchase and use mobile devices,don wearables,and even accept electronic implants,all while being assured that the new tools g their best interests.The growing adoption of technology that some see as invasive raises questions of what exactly constitutes voluntary behavior in a wage economy“Very few things in the workplace are voluntary,"says attorney Paula Brantner,a senior adviser at Workplace Fairness,a nonprofit in Silver Spring,Md,that promotes employee rights."You have an incentive to keep your job,to make your employer happy,to be on track for raises and promotions Currently Just 8%of employer-sponsored wellness plans provide fitness-tracking bands,but they can be used for more than just ensuring workers stay active.And other potentially intrusive devices have starte d to pop up as well.These trackers contribute data to what human resource managers call"people analytics,an approach that big data and analytics bring to bear on decisions involving hiring,firing and productivity It's this sort of fine-grained analytics that Amazon was pursuing in 2016 when it filed two patents for wristbands that use ultrasonic pulses and radio transmissions to monitor the locations of employees hands relative to inventory bins,so that employers can"monitor performance of assigned tasks."Other companies are going deeper with electronic trackers,literally.Last summer,the Wisconsin-based vending-kiosk company Three Square Market announced that it would be offering its workers the opportunity to have radio-frequency identification chips implanted into their hands.According to the company,The rice-grain-sized chip would be injected between the thumb and forefinger,where it can be used to unlock doors,log in to computers,run photocopiers,and purchase snacks from break-room vending machines There needs to be just a broader acknowledgement of the necessity of these things in people's lives,not just as the superficial social technologies but increasingly as the mundane ways that we get stuff done in our everyday lives,says Julia Ticona,a postdoctoral researcher at the Data Society Research Institute in New York."We need to really treat them instead of purely individual consumer devices,to treat them as a part of public infrastructure Ticona argues that government efforts to extend home broadband internet access to all Americans should more fully take mobile technology into account We don't just sit at home at our desks and do homework on our laptop,she says"It's out in the world and it needs to travel with us Why did Paula Brantner say Very few things in the workplace are voluntary"
A.Because the workers'personal rights are deprived or greatly restricted.
B.Because workers,as the weak group,worry about their jobs and salary.
C.Because workers are under the strict supervision of their managers.
D.Because workers need to obey harsh workplace rules and regulations

[单选题]简易瞬态工况法检测时,车速偏差不得在连续2秒内超差( )km/h。A.±1B.±2C.±3D.±4

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[单选题]简易瞬态工况法检测时,车速偏差不得在连续2秒内超差( )km/h。
A.±1
B.±2
C.±3
D.±4