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推荐 2819
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推荐 2819
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推荐 5845
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推荐 5845
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推荐 2334
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推荐 2334
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wuzhibiao2004博友的观点
编者按：我无意用wuzhibiao2004博友的观点来证明什么，虽然他的一些看法很有道理，但有些观点还是打击面太大过于偏激，尽管有一些瑕疵，但还是摘录在此，与大家分享！周工，谈谈我对您的看法，在这里，我为什么用您呢，是因为我对你的钦佩，我
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推荐 2100
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推荐 2100
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中国山寨产业核心价值在产业链两极
近期连续在媒体看到几篇有关中国山寨日薄西山、利润腰斩的文章，对于不知情的消费者或许会认为山寨产业已经走向末路，其实熟悉山寨产业链的朋友都清楚中国山寨产业不仅没有没落的迹象，而是正处在爆发的边缘。从山寨产业链来看，最前端的应当是包括联
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推荐 1920
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推荐 1920
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iPAD定价阻挡对手进入平板电脑
APPLEiPAD推出已经超过三个月，期间虽然不断有竞争对手宣布推出类似产品，至今鲜见上市，汉王科技倒是匆匆忙忙发布过一款基于IntelCPU和WinXP的平板电脑号称与iPAD竞争，可惜刚刚发布公司内部便已经放弃，据说除了外壳之外所有软硬件需要重新设计以便于与Ap
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推荐 1857
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推荐 1857
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In September, a person's evening
Afternoon,afterfinishingthingsIwentstraighttoopenthegoldsmithshops,smallpieceoftheresultschainsawinthemorninghavebeensold,Iwasforcedtoelecttheroot,prizemoney,verythin,verydelicate,smallandmiddlepegteethbeads.Forjewelry,Imnotinterested,oncebough
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推荐 1727
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推荐 1727
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This center is estimated at around 12 o'clock
Thiscenterisestimatedataround12oclock,ACswifecalledandheardthesoundofcryingoutisaband,shewasonJuly18withatransferoftheirsafety-year-oldchildandamulti-month-oldBabytemporarytogoliveinlow-endhostels.Shesaidtherehaveelectricity,water,instantnoodle
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推荐 2108
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推荐 2108
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I glared at him, said nothing,
Iglaredathim,saidnothing,dialingcellphonedrivers,butnotcontactotherpeoplebecauseofemergency,againwithoutthephone,Ihadtotalktothebosscalledtosaythatanymoreaccompaniedbyfivemembers,atotalof15individuals,theywereimmediatelyreturnedtothecompanysfac
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推荐 1892
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推荐 1892
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Typhoon watch was just scared of women
Typhoonwatchwasjustscaredofwomenandchildrenhuddledbossalsofeltaheavyresponsibility,andimmediatelyorderedallstafffocus,Ibrieflysayafewwords,saidthatthecurrentsituationweallknow,thecompanybossknowoursideofthesituationimmediatelyhurrie
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推荐 1676
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推荐 1676
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Begonia flowers open
BeganinTaiwan,thefifthtyphoonofthisyear-Begonia,isthespeedof40meterspersecondalongthecoasttothesouthofZhejiangapproximation,isexpectedtovisitintheeveningonthe18thofWenzhou......At4:20p.m.onthe18July,Ireceivedanurgentnoticerequiringr
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推荐 2012
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推荐 2012
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Mother
Youareenrolledinschoolbags,itwastogetyou,yourflowerfoldingumbrellarainwastohityou,yourfavoritechilddepressionthatSamSun,someoneyoupack,youwrongedthetears,someonetorubyou;youareinthatforeignland,thepeopleincare;youbacktothehomesidethatwasbrewedhottea,
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推荐 1524
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推荐 1524
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A little more humility
Onemorning,Iwenttotownafterfinishingthestationaftermovinginthedirectionofwalking,bushadnotcome.Inoticedaroundathree-year-oldwomanwasalsoaboutwaitingforthebus,shewasnottall,coolday,theweatherpoint,sheworeawhitecompassionate,alsosetsoutablacklong-sleev
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推荐 1709
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推荐 1709
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Like a faded film
Likeafadedfilm,photos,youngmothersarestillcleanandneatlydressedinblueBushan,carryingmeawayinthefieldbetweenthetrack,rememberalwaysexudesawarmatmosphere.WhenhermothercouldnotbeartoputthisnormalwearblueBushan,Iknowmotherwouldtakemetodistantvillagestovi
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推荐 1710
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推荐 1710
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White walls
Whitewalls,thetotalandtheemotionoftheancient.Forasinglewhiteisjustakindofextraordinarycolor,white,white,white,nonotanormalthingeven.Onlywhitewallsisanexception,commonsidewall,asmearonthewhite,themetamorphosisofadifferentkindofliferhythmandaesthetics.
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推荐 2707
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推荐 2707
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全集成、部分集成和分立开关电源方案比较分析 (2)
2.分立器件方案图2为一种典型分立实现方案。分立高压晶体管最初由直流总线通过R1偏置并由ZR1箝位，当晶体管栅极电压达到导通阀值时，Q1打开。当通过检流电阻的漏电流达到预定值时，被关断的控制晶体管Q2被偏置电压打开，将Q1关断。Q1关断后，储存在变压器中的能量即传递
