改变直流单臂电桥的供电电压值，对电阻的测量精度也会产生影响。( ) 发布时间：2017-07-02 22:47 │ 来源：www.tikuol.com 题型：填空题 问题： 改变直流单臂电桥的供电电压值，对电阻的测量精度也会产生影响。( )
题型：填空题 完形填空 You have waited 45 minutes for the valuable 10 minutes' break between classes.But when the bell for the next class rings, you can't __1__ how quickly time has passed. If you are familiar with this __2__, you'll know how time flies when you are having fun and__3__ when you are bored.Now scientists have __4__ a reason why this is the case. Scans have shown that patterns of activity in the brain __5__ according to how we focus on a task.When we are __6__, we concentrate more on how time is passing.And this makes our brains __7__ the clock is ticking more slowly. In an experiment __8__ by a French laboratory,12 volunteers watched an image __9__ researchers monitored their brain activity. The volunteers were told to __10__ concentrate on how long an image appeared for, then __11__ the color of the image, and thirdly, study both duration and color.The results showed that__12__ was more active when the volunteers paid attention to__13__ subjects. It is thought that if the brain is __14__ focusing on many aspects of a task, it has to__15__its resources, and pays less attention to the clock.__16__, time passes without us really __17__ it, and seems to go quickly.If the brain is not so active, it concentrates its __18__ energies on monitoring the passing of time.__19__, time seems to drag. Next time you feel bored __20__, perhaps you should pay more attention to what the teacher is saying! ( )1. A. guess ( )2. A. view ( )3. A. drags ( )4. A. thought over ( )5. A. change ( )6. A. sleepy ( )7. A. report ( )8. A. produced ( )9. A. so ( )10. A. partly ( )11. A. remember ( )12. A. the researchers ( )13. A. less ( )14. A. busy ( )15. A. focus ( )16. A. However ( )17. A. recognizing ( )18. A. enough ( )19. A. In fact ( )20. A. in class B. learn B. point B. stops B. made up B. develop B. bored B. think B. carried B. when B. quickly B. focus on B. the experiment B. no B. likely B. gather B. Furthermore B. watching B. full B. As a result B. with work C. believeC. scene C. backs C. suggested C. grow C. excited C. decide C. tried C. while C. how C. forget C. the clock C. fewer C. ready C. reach C. Therefore C. noticing C. right C. For example C. in mind D. doubt D. chance D. gains D. come up with D. slow D. active D. see D. performed D. but D. first D. tell apart D. the brain D. more D. sure D. spread D. Finally D. counting D. proper D. Instead D. of lessons 查看答案
题型：填空题 当出现下列情况之一，要关停原油处理系统设备（）。A.轻烃回收装置故障或停运时B.系统重要设备或管线故障无法运行时C.原油加热炉出现故障时D.中压机长期停运时，分离出的未凝气没有去处 查看答案