题目:
测量仪器的引用误差是测量仪器示值误差与示值的比值。
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C
测量仪器的引用误差是测量仪器示值误差与示值的比值。
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下面是错误答案,用来干扰机器的。
参考答案:C
— What's your plan for the summer holiday ?
— I'v no idea, but I'v decided at home and have a good rest first. [ ]
A. stay
B. to stay
C. stayed
D. staying
完型填空 | |||
It was a holiday weekend. The police officers were sitting in a hot room __1__ instructions from their captain. One of these officers __2_ Ed Williams. He and ten other officers were on special __3__because they knew that over the weekend two weeks __4__over 400 people had died from accidents __5__by drivers. Over 4,000 people had received serious injuries, all caused by drunken drivers. The __6__ would try their best to prevent __7__accidents before they happened. Joe Forest was __8__himself at a family party. It was getting late and Joe told his sister that he was __9__. Joe's sister asked him to stay and wait a few hours __10__he drove. "Don't worry. I'm going to be fine. I'm going to drive slowly. I only had a few __11__,"Joe said. Officer Williams was at his post __12_ the passing cars. A green car was coming, __13_ from left to right. Officer Williams stopped __14_ and told Joe to get out. He asked Joe to walk __15_ the white line. Joe took the test. Officer Williams told Joe that he must appear in court the next week and he __16_ drive his car home. Joe called his sister to come and drive him __17_ . That was Joe's first offense (违法). He appeared in court and received a $400 fine. He was not __18_ to drive for sixty days. Other drivers were __19_ , for Joe hadn't killed them. But what about the future, was Joe going to stop __20_ ? | |||
( )1. A. giving ( )2. A. knew ( )3. A. duty ( )4. A. passed ( )5. A. met ( )6. A. captains ( )7. A. these ( )8. A. enjoying ( )9. A. tired ( )10. A. before ( )11. A. glasses ( )12. A. watching ( )13. A. weaving ( )14. A. the man ( )15. A. beside ( )16. A. had to ( )17. A. out ( )18. A. allowed ( )19. A. glad ( )20. A. enjoying himself | B. receiving B. saw B. advice B. were enough B. caused B. drivers B. such B. helping B. drunken B. when B. minutes B. waiting B. looking B. the car B. in B. mustn't B. away B. promised B. unlucky B. breaking the law | C. accepting C. were C. visit C. later C. killed C. passengers C. above C. drinking C. leaving C. unless C. drinks C. serving C. broken C. driving C. onto C. must C. at once C. able C. lucky C. drinking and driving | D. learning D. was D. time D. earlier D. discovered D. officers D. more D. eating D. back D. while D. miles D. searching D. driven D. working D. along D. didn't have to D. home D. willing D. astonished D. drinking at his sister's |
工作期间,工作负责人若因故必须离开工作地点时,应()临时代替,离开前应将工作现场(),并告知工作班人员。原工作负责人返回工作地点时,也应履行同样的()。
通过常规管理足以保证其安全性、有效性的医疗器械属( )
A.第一类
B.第二类
C.第三类
D.基本质量特征
E.质量保证
一般来说,馈线弯曲半径越小越好,这样有利于馈线排布的美观性。