用两种方法分别测量两个尺寸,设它们的真值分别为L1=50mm,L2=80mm,若测得

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问题:

用两种方法分别测量两个尺寸,设它们的真值分别为L1=50mm,L2=80mm,若测得值分别为50.004mm和80.006mm,试评定哪一种测量方法精度较高。

考点:测绘科学技术互换性与技术测量互换性与技术测量题库
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I was doing some last-minute Christmas shopping in a toy store. A nicely dressed little girl was  36  the teddy bears(泰迪熊) beside her father  37 she saw a little boy walk in and stop in front of the Pokémon toys. His jacket was obviously too small. He had money in his hand.  38 , it looked no more than five dollars at most. He was with his father as well, and  39  picking up the Pokémon video games. Each time he showed one to his father, his father  40  his head, “No”.
Rather  41 , the boy gave up the video games and chose a book of stickers  42 . After they walked away, the little girl ran over to the Pokémon video games. She excitedly picked up one  43  on top of the others, and raced down toward the check-out(结账处). I picked up my purchases and  44 the girl and her father.
Then, much to the little girl’s  45 , the little boy and his father got in line  46 her and me. After the video was paid for and bagged, the little girl  47 it back to the cashier(收银员) and  48  something to her. The cashier smiled and put the  49 under the counter(柜台). I was putting things in my bag when the little boy came up to the cashier. The cashier said, “  50  , you’re my hundredth customer today, and you win a prize!” and she handed the boy the Pokémon game. The boy could only   51  in disbelief. It was, he said,   52  what he had wanted! The little girl and her father had been standing at the doorway, and I saw the biggest and  53 smile on that little girl I have ever seen in my life.
I suddenly understood that the world is not  54 into the strong who care and the  55 who are cared for. We must each in turn care and be cared.
小题1:A.looking through   B.getting through    C dressing up       D.tidying up
小题2:
A.whileB.whenC.afterD.once
小题3:
A.ThenB.ThereforeC.HoweverD.Otherwise
小题4:
A.stoppedB.continuedC.avoidedD.kept
小题5:
A.shookB.noddedC.movedD.held
小题6:
A.anxiousB.disappointedC.angryD.curious
小题7:
A.alsoB.insteadC.lastlyD.indeed
小题8:
A.layingB.lyingC.to lieD.lain
小题9:
A.accompaniedB.helpedC.admiredD.followed
小题10:
A.surpriseB.satisfactionC.joyD.regret
小题11:
A.behindB.beforeC.betweenD.beyond
小题12:
A.putB.handedC.sentD.carried
小题13:
A.whisperedB.shoutedC.gaveD.showed
小题14:
A.basketB.bagC.bearD.gift
小题15:
A.SorryB.Excuse meC.CongratulationsD.Pardon me
小题16:
A.cryB.stareC.jumpD.pay
小题17:
A.extremelyB.onlyC.exactlyD.wonderfully
小题18:
A.widestB.greatestC.prettiestD.dearest
小题19:
A.dividedB.changedC.includedD.cut
小题20:
A.poorB.uglyC.unhappyD.weak
题型:问答题 简答题

落实科学发展观需要工程咨询推动经济发展方式转变的重点是( )。

A.经济的发展

B.全民素质提高

C.精神文明的建设

D.建设资源节约型社会

题型:问答题 简答题

在基督教的历史上,发生过两次大的分裂,其中第二次分裂的主要原因是( )。

A.争夺教权

B.宗教改革

C.民族问题

D.战争原因

题型:问答题 简答题

企业的关联方包括:()

A.与该企业受同一母公司控制的其他企业

B.对该企业实施共同控制的投资方

C.对该企业施加重大影响的投资方

D.该企业的合营企业

题型:问答题 简答题

()、()、()、行走减速器,使用N320型的工业齿轮油

A、切割

B、装载

C、刮板输送机

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