2014年1-6月份全国固定资产投资(不含农户)增长17.3%
intel ssd model number解读

intel ssd model number解读英特尔固态硬盘型号解读英特尔是一家享有盛誉的计算机硬件制造商,其固态硬盘(SSD)备受消费者的青睐。
在购买英特尔固态硬盘时,了解其型号意义可以帮助我们选择适合自己需求的产品。
以下是对英特尔固态硬盘型号的解读:首先,英特尔固态硬盘型号通常以一串字母和数字的组合呈现。
例如,Intel SSD 760p,Intel SSD 660p等。
这些型号中的数字通常代表性能水平或系列。
较高的数字通常意味着更高的性能。
其次,英特尔固态硬盘型号中的字母组合通常代表不同的产品系列。
常见的系列包括Pro、Optane和DC(数据中心)等。
每个系列都针对特定的应用领域和用户需求。
Pro系列常用于专业工作站和高性能计算领域。
这些固态硬盘通常具有更高的持久性和可靠性,并且能够处理更复杂的计算任务。
Optane系列是英特尔最新推出的一种创新型存储技术。
Optane固态硬盘具有出色的响应速度和较高的吞吐量,适用于需要更快速度和更高性能的计算任务。
DC系列是为数据中心和企业级应用而设计的固态硬盘。
这些固态硬盘通常具有更高的容量和更好的数据保护功能,以满足数据中心所需的大规模存储需求。
除了型号本身,英特尔固态硬盘型号中的后缀字母也代表特定的功能或规格。
例子包括"p"代表PCIe接口,"s"代表SATA接口,"e"代表高效能,"t"代表信任。
综上所述,通过了解英特尔固态硬盘型号的不同组成部分和后缀含义,我们可以根据自己的需求选择最适合的产品。
无论是高性能计算、专业工作站还是数据中心应用,英特尔固态硬盘都能提供卓越的性能和可靠性,满足各种用户的需求。
北京市海淀区2023~2024学年第一学期七年级期末数学参考答案

七年级练习数学参考答案一、选择题二、填空题11. 1− 12. 答案不唯一,m 为负数即可 13. 两点之间,线段最短 14. 318422x x +=−15. >16. 4;1说明:第14题写出方程的解也给3分;第16题第一空1分,第二空2分.三、解答题17. 解:(1)()()3258⨯−−−+658=−++ ········································································2分 7=········································································3分(2)()21126|3|2⎛⎫⨯−+−÷− ⎪⎝⎭()1=12634⨯+−÷········································································2分 ()=32+−········································································3分 =1········································································4分18. 解:(1)原方程可化为:733x x +=− ········································································1分 102x = ········································································2分 5x =········································································3分(2)原方程可化为:2(1)512x x −=−− ········································································1分 22512x x −=−− ········································································2分 35x =− ········································································3分 53x =−········································································4分19. 解: 3()4418a b a b −+−+3()4()18a b a b =−+−+7()18a b =−+ ········································································2分因为3a b −=,········································································3分所以7()18211839a b −+=+=. ········································································4分即3()441839a b a b −+−+=.20. 解:(1)作图如图所示:作出点B (保留作图痕迹); ········································································1分作出符合条件的射线OP ; ········································································2分作出点C ,并连接CA ,CB ; ········································································3分 (2)<········································································4分21. 解:因为∠AOD 与∠BOC 互为补角, 所以∠AOD +∠BOC =180°.········································································1分因为∠AOD = ∠AOC+∠COD ,∠BOC = ∠BOD+∠COD , 所以∠AOC+∠COD+∠BOD+∠COD=180°. ················································2分因为∠AOC =20°,∠BOD =2∠COD , 所以20°+4∠COD=180°. ········································································3分 所以∠COD=40°.········································································4分答:∠COD 的度数为40°.CAP BMN O22.解:(1)由图可知AB=AC+CB .因为AB =12,AC =2,所以12210CB AB AC =−=−=. ··································································1分因为D 为线段BC 的中点, 所以1110522CD CB ==⨯=.········································································2分(2)当E 在点A 右侧时, 如图①.因为5AE CD ==,且AB =12,所以1257EB AB AE =−=−=. ········································································3分当E 在点A 左侧时, 如图②.因为5AE CD ==,且AB =12, 所以12517EB EA AB =+=+=. ····························································4分综上所述,EB 的长为7或17.23. 解:设还需要增加x 名文物修复师才能按时完成修复工作. ······························1分依题意列方程,得10×16720+20(16+x)720=1. ··········································3分解得 x =12.··································································4分答:还需要增加12名文物修复师才能按时完成修复工作.························5分24. 解:(1)132. ·················································································1分因为17−<,所以()1131&7722−=−+=.(2)若2x >,2&1x x =+,于是5213x x ++=,解得12x =,舍; ·····················2分 若2x =,2&2x x =+,于是5223x x ++=,解得2x =,成立; ·····················3分 若2x <,2&22xx =+,于是52223x x ++=,解得87x =,成立·····················4分所以x 的值为2或87. 图①ACED B图②ACD BE(3)32. ·················································································5分 25.解:(1)①15;·················································································1分②∠MON =∠BOC ;·····································································2分(2)解:0120 1.α︒<<︒当时,如图 因为 2AOB BOC αα∠=∠=,,所以3.22AOC AOB BOC ααα∠=∠++=∠=因为OM 平分∠AOC , 所以.1234MOC AOC α∠=∠=因为ON 平分∠BOC , 所以.1214NOC BOC α∠=∠=(说明:两次角平分线用对一次可给1分)所以311.442MON MOC NOC ααα∠−∠==∠−= ·············································4分120180 2.α︒<<︒当时,如图因为2AOB BOC αα∠=∠=,,所以360()3603.2AOC AOB BOC α∠=︒−∠+∠=︒−因为OM 平分∠AOC ,所以83.14102MOC AOC α∠=∠=︒−因为ON 平分∠BOC , 所以.1214NOC BOC α∠=∠=(说明:两次角平分线用对一次可给1分) 所以11.820MON MOC NOC α∠=∠+∠=︒− 综上所述,1801.2MON MON αα∠=∠=︒−或·············································6分26. (1)212x −=−;是. ·············································2分(2)因为点 A 和点B 分别表示的数为a ,b , 所以线段AB 的中点表示的数为2a bc +=. 图 1图 2因为a=0.5,所以0.52b c+ =.因为线段AB的美好点恰好是线段AB的中点,所以代入方程ax b ab+=得:0.5+0.50.52bb b⨯+=.·································3分解得:16 b=−.所以0.5126bc+==. ·······························································4分(3)46. ·················································································6分。
Motorola 3.5 kHz 产品说明书

RVN4126 3.59100-386-9100-386/T DEVICERVN41772-CD2-3.5MCS/MTSRVN41821-CD2-3.5XTS3000/SABER PORTABLE YES RKN4046KHVN9085 3.51-20 R NO HLN9359 PROG. STAND RVN4057 3.532 X 8 CODEPLUG NO3080385B23 & 5880385B30 MDVN4965 3.59100-WS/T CONFIG KITRVN4053 3.5ASTRO DIGITAL INTERFACE NO3080385B23RVN41842-CD RKN4046A (Portable) 2-3.5ASTRO PORTABLE /MOBILE YES3080369B73 or0180300B10 (Mobile) RVN41831-CD3080369B732-3.5ASTRO SPECTRA MOBILE YES(Low / Mid Power)0180300B10 (High Power) RVN4185CD ASTRO SPECTRA PLUS MOBILE NO MANY OPTIONS; SEESERVICE BRIEF#SB-MO-0101RVN4186CD ASTRO SPECTRA PLUS MANY OPTIONS;MOBILE/PORTABLE COMB SEE SERVICE BRIEF#SB-MO-0101RVN4154 3.5ASTROTAC 3000 COMPAR.3080385B23RVN5003 3.5ASTROTAC COMPARATORS NO3080399E31 Adpt.5880385B34RVN4083 3.5BSC II NO FKN5836ARVN4171 3.5C200RVN4029 3.5CENTRACOM SERIES II NO VARIOUS-SEE MANUAL6881121E49RVN4112 3.5COMMAND PLUS NORVN4149 3.5COMTEGRA YES3082056X02HVN6053CD CT250, 450, 450LS YES AAPMKN4004RVN4079 3.5DESKTRAC CONVENTIONAL YES3080070N01RVN4093 3.5DESKTRAC TRUNKED YES3080070N01RVN4091 3.5DGT 9000 DESKSET YES0180358A22RVN4114 3.5GLOBAL POSITIONING SYS.NO RKN4021AHVN8177 3.5GM/GR300/GR500/GR400M10/M120/130YES3080070N01RVN4159 3.5GP60 SERIES YES PMLN4074AHVN9128 3.5GP300 & GP350RVN4152 3.5GP350 AVSRVN4150 3.5GTX YES HKN9857 (Portable)3080070N01(Mobile) HVN9025CD HT CDM/MTX/EX SERIES YES AARKN4083/AARKN4081RiblessAARKN4075RIBLESS NON-USA RKN4074RVN4098H 3.5HT1000/JT1000-VISAR YES3080371E46(VISAR CONV)RVN4151 3.5HT1000 AVSRVN4098 3.5HT1000/ VISAR CONV’L.YES RKN4035B (HT1000) HVN9084 3.5i750YES HLN-9102ARVN4156 3.5LCS/LTS 2000YES HKN9857(Portable)3080070N01(Mobile) RVN4087 3.5LORAN C LOC. RECV’R.NO RKN4021ARVN4135 3.5M100/M200,M110,M400,R100 includesHVN9173,9177,9646,9774YES3080070N01RVN4023 3.5MARATRAC YES3080070N01RVN4019 3.5MAXTRAC CONVENTIONAL YES3080070N01RVN4139 3.5MAXTRAC LS YES3080070N01RVN4043 3.5MAXTRAC TRK DUPLEX YES3080070N01RVN4178CD MC SERIES, MC2000/2500DDN6124AW/DB25 CONNECTORDDN6367AW/DB9 CONNECTOR RVN41751-CD Rib to MIC connector 1-3.5MCS2000 RKN4062BRVN41131-3.5MCS2000RVN4011 3.5MCX1000YES3000056M01RVN4063 3.5MCX1000 MARINE YES3000056M01RVN4117 3.5MDC/RDLAP DEVICESRVN4105 3.5MOBILE PROG. TOOLRVN4119 3.5MOBITEX DEVICESRVN4128 3.5MPT1327-1200 SERIES YES SEE MANUALRVN4025 3.5MSF5000/PURC/ANALOG YES0180355A30RVN4077 3.5MSF5000/10000FLD YES0180355A30RVN4017K 3.5MT 1000YES RTK4205CRVN4148 3.5MTR 2000YES3082056X02RVN4140 3.5MTRI 2000NORVN41761-CD MTS2000, MT2000*, MTX8000, MTX90001-3.5*programmed by DOS which is included in the RVN4176RVN4131 3.5MTVA CODE PLUG FIXRVN4142 3.5MTVA DOCTOR YES3080070N01RVN4131 3.5MTVA3.EXERVN4013 3.5MTX800 & MTX800S YES RTK4205CRVN4097 1-CD MTX8000/MTX9000,MTS2000,MT2000*,* programmed by DOS which is included in the RVN4176HVN9067CD MTX850/MTX8250MTX950,MTX925RVN4138 3.5MTX-LS YES RKN4035DRVN4035 3.5MX 1000YES RTK4203CRVN4073 3.5MX 800YES RKN4006BHVN9395 P100, P200 LB, P50+, P210, P500, PR3000RVN4134 3.5P100 (HVN9175)P200 LB (HVN9794)P50+ (HVN9395)P210 (HVN9763)P500 (HVN9941)PR3000 (HVN9586)YES RTK4205HVN9852 3.5P110YES HKN9755A/REX1143 HVN9262 3.5P200 UHF/VHF YES RTK4205RVN4129 3.5PDT220YVN4051 3.5PORTABLE REPEATER Portable rptr.P1820/P1821AXRVN4061C 3.5PP 1000/500NO3080385B23 & 5880385B30 RVN5002 3.5QUANTAR/QUANTRO NO3O80369E31RVN4135 3.5R100 (HVN9177)M100/M200/M110/M400YES0180358A52RVN4146 3.5RPM500/660RVN4002 3.5SABER YES RTK4203CRVN4131 3.5SETTLET.EXEHVN9007 3.5SM50 & SM120YESRVN4039 3.5SMART STATUS YES FKN5825AHVN9054 3.5SOFTWARE R03.2 P1225YES3080070N01HVN9001 3.5SOFTWARE R05.00.00 1225LS YES HLN9359AHVN9012 3.5SP50RVN4001N 3.5SPECTRA YES3080369B73 (STANDARD)0180300B10 (HIGH POWER) RVN4099 3.5SPECTRA RAILROAD YES3080369B73RVN4110 3.5STATION ACCESS MODULE NO3080369E31RVN4089A 3.5STX TRANSIT YES0180357A54RVN4051 3.5SYSTEMS SABER YES RTK4203BRVN4075 3.5T5600/T5620 SERIES NO3080385B23HVN9060CD TC3000, TS3000, TR3000RVN4123 3.5VISAR PRIVACY PLUS YES3080371E46FVN4333 3.5VRM 100 TOOLBOX FKN4486A CABLE &ADAPTORRVN4133 3.5VRM 500/600/650/850NORVN4181CD XTS 2500/5000 PORTABLES RKN4105A/RKN4106A RVN41002- 3.5XTS3000 ASTRO PORTABLE/MOBILERVN4170 3.5XTS3500YES RKN4035DRIB SET UPRLN4008E RADIO INTERFACE BOX (RIB)0180357A57RIB AC POWER PACK 120V0180358A56RIB AC POWER PACK 220V3080369B71IBM TO RIB CABLE (25 PIN) (USE WITH XT & PS2)3080369B72IBM TO RIB CABLE (9 PIN)RLN443825 PIN (F) TO 9 PIN (M) ADAPTOR (USE W/3080369B72 FOR AT APPLICATION) 5880385B308 PIN MODULAR TO 25 PIN ”D” ADAPTOR (FOR T5600 ONLY)0180359A29DUPLEX ADAPTOR (MOSTAR/TRAXAR TRNK’D ONLY)Item Disk Radio RIB Cable Number Size Product Required Number Item Disk Radio RIB Cable Number Size Product Required NumberUtilizing your personal computer, Radio Service Software (RSS)/Customer Programming Software (CPS)/CustomerConfiguration Software (CCS) enables you to add or reprogram features/parameters as your requirements change. RSS/CPS/CCS is compatible with IBM XT, AT, PS/2 models 30, 50, 60 and 80.Requires 640K RAM. DOS 3.1 or later. Consult the RSS users guide for the computer configuration and DOS requirements. (ForHT1000, MT/MTS2000, MTX838/8000/9000, Visar and some newer products —IBM model 386, 4 MEG RAM and DOS 5.0 or higher are recommended.) A Radio Interface Box (RIB) may be required as well as the appropriate cables. The RIB and cables must be ordered separately.Licensing:A license is required before a software (RVN) order is placed. The software license is site specific (customer number and ultimate destination tag). All sites/locations must purchase their own software.Be sure to place subsequent orders using the original customer number and ship-to-tag or other licensed sites; ordering software without a licensed customer number and ultimate tag may result in unnecessary delays. To obtain a no charge license agreement kit, order RPX4719. To place an order in the U.S. call 1-800-422-4210. Outside the U.S., FAX 847-576-3023.Subscription Program:The purchase of Radio ServiceSoftware/Customer Programming/Customer ConfigurationSoftware (RVN & HVN kits) entitles the buyer/subscriber to three years of free upgrades. At the end of these three years, the sub-scriber must purchase the same Radio Service Software kit to receive an additional three years of free upgrades. If the sub-scriber does not elect to purchase the same Radio Service Software kit, no upgrades will be sent. Annually a subscription status report is mailed to inform subscribers of the RSS/CPS/CCS items on our database and their expiration dates.Notes:1)A subscription service is offered on “RVN”-Radio Service Software/Customer Programming/Customer Configuration Software kits only.2)“RVN” software must only be procured through Radio Products and Services Division (RPSD). Software not procured through the RPSD will not be recorded on the subscription database; upgrades will not be mailed.3)Upgrades are mailed to the original buyer (customer number & ultimate tag).4)SP software is available through the radio product groups.The Motorola General Radio Service Software Agreement is now available on Motorola Online. If you need assistance please feel free to submit a “Contact Us” or call 800-422-4210.SMART RIB SET UPRLN1015D SMART RIB0180302E27 AC POWER PACK 120V 2580373E86 AC POWER PACK 220V3080390B49SMARTRIB CABLE (9 PIN (F) TO 9 PIN (M) (USE WITH AT)3080390B48SMARTRIB CABLE (25 PIN (F) TO 9 PIN (M) (USE WITH XT)RLN4488ASMART RIB BATTERY PACKWIRELESS DATA GROUP PRODUTS SOFTWARERVN4126 3.59100-386/9100T DEVICES MDVN4965 3.59100-WS/T CONFIG’TN RVN41173.5MDC/RDLAP DEVICESPAGING PRODUCTS MANUALS6881011B54 3.5ADVISOR6881029B90 3.5ADVISOR ELITE 6881023B20 3.5ADVISOR GOLD 6881020B35 3.5ADVISOR PRO FLX 6881032B30 3.5BR8506881032B30 3.5LS3506881032B30 3.5LS5506881032B30 3.5LS7506881033B10 3.5LS9506881035B20 3.5MINITOR III8262947A15 3.5PAGEWRITER 20008262947A15 3.5PAGEWRITER 2000X 6881028B10 3.5TALKABOUT T3406881029B35 3.5TIMEPORT P7308262947A15 3.5TIMEPORT P930NLN3548BUNIVERSAL INTERFACE KITItem Disk Radio NumberSize Product。
2023-2024学年湖北省武汉市江岸区七年级上学期期末数学试卷

2023-2024学年湖北省武汉市江岸区初一数学第一学期期末试卷一、选择题(本题共10小题,每小题3分,共30分)1.四个有理数34−,1−,0,1,其中最小的是( ) A .34−B .0C .1−D .12.根据武汉市统计局调查数据显示,武汉市前三季度,全市的GDP 总额累计约为14000亿元,将数字14000用科学计数法表示为( ) A .41.410⨯B .31.410⨯C .50.1410⨯D .41410⨯3.方程312+=x a 的解是2=x ,则=a ( ) A .2B .103C .2−D .64.某正方体的平面展开图如图所示,则原正方体中与“均”字所在的面相对的面上的字是( )A .优B .衡C .教D .质5.有理数a 、b 在数轴上的对应点的位置如图所示,下列结论不正确...的是( )A .0+<a bB .0−<a bC .0>abD .0<ab6.如图,已知点O 是直线AB 上一点,58∠=︒AOC ,74∠=︒BOD ,则∠+∠AOD BOC 等于( )A .218︒B .228︒C .238︒D .254︒7.我国古代著作《增删算法统宗》中记载了一首古算诗:“庭前孩童闹如簇,不知人数不知梨.每人四梨多十二,每人六梨恰齐足.”其大意是:“孩童们在庭院玩耍,不知有多少人和梨子.每人分4梨,多12梨:每人分6梨,恰好分完.”设孩童有x 名,则可列方程为( ) A .4126+=x xB .4126−=x xC .1246−=x xD .1246+=x x8.若关于x 、y 的多项式()()22453243−+−−−−+−x ax y bx x y 的值与字母x 的取值无关,则+b a 的值是( ) A .10B .6−C .10−D .69.如图,表中给出的是某月的月历,用“H ”型框在表中任意选取7个数(如阴影部分所示),请你运用所学的数学知识来研究,发现这7个数的和不可能...的是( )A .63B .70C .84D .10510.如图,20cm =AB ,点C 是线段AB 延长线上一点,点M 为线段AC 的中点,在线段BC 上存在一点N (N 在M 的右侧且N 不与B 、C 重合),使得440cm −=MN NB 且=BN kCN ,则k 的值为( )A .2B .3C .2或3D .不能确定二、填空题(本题共6小题,每小题3分,共18分)11.2024的倒数是______.12.一个角的余角是3652'︒,则这个角的补角是______.13.定义一种新运算:2*=−+a b a b ab .例如:()()()21*313135−=−−+−⨯=−,则()4*3*2−=⎡⎤⎣⎦______.14.将一张长方形纸片ABCD 按如图所示方式折叠,AE 、AF 为折痕,点B 、D 折叠后的对应点分别为'B 、'D ,若41∠=︒EAF ,则''∠B AD 的度数为______.15.下列四个结论中: ①若25−nmb a与428a b 是同类项,则=m n :②若关于x 的多项式()()2223165−+−++ax x x x a的运算结果中不含2x项,则常数项为1−:③若0<<<c b a ,则22−−−+−=−+a b c a c b b c :①若0++=a b c ,0≠abc ,则||−−−+++abcb c b c a a c c abc的结果只有一种. 其中正确的是______(填序号)16.数独是源自于18世纪瑞士的一种益智数学游戏.在图中的每一个方格中填入一个数字,使得每行、每列以及每条对角线上四个数字都是1、2、3、4,则y 的值为______.三、解答题(共8小题,共72分)17.计算(1)()()3423230÷−+⨯−−−: (2)()11124462⎛⎫−+⨯−⎪⎝⎭. 18.解方程: (1)324+=−x x : (2)3121123+−−=x x .19.先化简,再求值:()()22221342−−+−−++a a a a ,其中1=a .20.团团圆圆家买了一套住房,建筑平面图如图:(单位:米)(1)用含有a 、b 的代数式表示主卧的面积为______平方米,次卧的面积为______平方米,客厅的面积为______平方米.(直接填写答案)(2)团团圆圆的爸爸想把主卧、次卧铺上木地板,其余部分铺瓷砖,已知每平方米木地板费用为200元,每平方米瓷砖的费用为100元,求5=a ,4=b 时,求整个房屋铺完地面所需的费用?21.(1)特例感知:如图1,已知线段20=MN ,2=AB ,线段AB 在线段MN 上运动(点A 不超过点M ,点B 不超过点N ),点C 和点D 分别是AM ,BN 的中点.①若8=AM ,则=CD ______:(直接填写答案)②线段AB 运动时,试判断线段CD 的长度是否发生变化?如果不变,请求出CD 的长度,如果变化,请说明理由.(2)知识迁移:我们发现角的很多规律和线段一样,如图2,已知∠AOB 在∠MON 内部转动,射线OC 和射线OD 分别平分∠AOM 和∠BON ,若150∠=︒MON ,30∠=︒AOB ,求∠COD .22.移动公司推出A 、B 两种话费与流量套餐,套餐详情如表.套餐补充说明:①月结话费=月基本费+主叫超时费+流量超额费:②流量超额后以GB 为单位计费(例如:套餐A 流量超额1.2GB ,需另付1.23 3.6⨯=元).(1)若贝贝的爸爸使用套餐A ,10月主叫时长为300分钟,使用的流量为15.5GB ,求他的月结话费为多少?(2)若贝贝的爸爸11月份主叫时长为350分钟,使用的流量为a GB (1520<<a ),贝贝通过计算发现,按A 、B 两种套餐计费的月结话费刚好相同,求a 的值:(3)若贝贝的爸爸12月份主叫时长不足200分钟,请你根据他流量使用情况计算说明选用哪种套餐更省钱.23.如图1,已知直线l 上线段6=AB ,线段2=CD (点A 在点B 的左侧,点C 在点D 的右侧),15=BD .(1)求图1中所有线段的条数为______条:(2)若线段AB 从点B 开始以2个单位/秒的速度向右运动,同时线段CD 从点D 开始以1个单位/秒的速度向左运动,当时间t 在什么范围内,线段CD 所有的点都在线段AB 上?(含端点)(3)若线段AB 从点B 开始以2个单位/秒的速度一直向右运动,同时,线段CD 从点C 开始以1个单位/秒的速度向右运动,当端点B 与D 初次相遇时,线段DC 立即以原来速度的2倍向左运动,当端点C 与端点A 初次相遇时,线段CD 的速度变为初始速度的12方向继续向左,问在整个运动过程中,时间t 为何值时1=AC .24.若290∠+∠=︒A B ,我们则称∠B 是∠A 的“绝配角”.例如:若110∠=︒,240∠=︒,则2∠是1∠的“绝配角”,请注意:此时1∠不是2∠的“绝配角”.(1)如图1,已知60∠=︒AOB ,在∠AOB 内存在一条射线OC ,使得∠AOC 是∠BOC 的“绝配角”,此时∠=AOC ______:(直接填写答案)(2)如图2,已知60∠=︒AOB ,若平面内存在射线OC 、OD (OD 在直线OB 的上方),使得∠AOC 是∠BOC 的“绝配角”,∠BOC 与∠BOD 互补,求∠AOD 大小: (3)如图3,若10∠=︒AOB ,射线OC 从OA 出发绕点O 以每秒20︒的速度逆时针旋转,射线OD 绕点O 从OB 出发以每秒10︒的速度顺时针旋转,OM 平分∠AOC ,ON 平分∠BOD ,运动时间为t 秒(020<≤t ).①当017<<t 时,∠AOB 是∠MON 的“绝配角”,求出此时t 的值:②当1720<≤t 时,=t ______时,∠AOB 是∠MON 的“绝配角”(直接填写答案).。
Fully Homomorphic Encryption without Modulus Switching from Classical GapSVP17-2-Brakerski

Ciphertext:
������ ∈ ℝ������ 2
real numbers ������������������ 2 ≡ (−1,1]
dec. if ������ < 2
1
Multiplicative Homomorphism:
������1, ������2 ⇒ ������1 ⊗ ������2 ������������������ 2 ∈
2. What does modulus switching really do?
nothing…
- Same as a scaling factor in the tensoring process ( ������1, ������2 ⇒ ������ ⋅ ������1 ⊗ ������2 ������������������ ������ ). - In a “correct” scale, this factor should be 1.
⇒ better performance with less headache
The Scheme:
Secret key:
Security based on ������������������������,������,������
FHE 101 [BV11b]
������ ∈ ℤ������ ������
⋅ 2 ������������������ 2 ������
≠ 1 (������������������ 2)
= ������1 + ������1 + 2������1 ⋅ ������2 + ������2 + 2������2
~������ ⋅ |������ + 2������| ≲ ������ ⋅ ������
SIMATIC S7-1500 ET 200MP 自动化系统 系统手册说明书

SIMATICS7-1500/ET 200MP 自动化系统系统手册01/2023A5E03461186-AKSiemens AG Digital Industries Postfach 48 48 90026 NÜRNBERG 德国Ⓟ 02/2023 本公司保留更改的权利Copyright © Siemens AG 2013 - 2023.保留所有权利法律资讯警告提示系统为了您的人身安全以及避免财产损失,必须注意本手册中的提示。
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如果在某个警告提示中带有警告可能导致人身伤害的警告三角,则可能在该警告提示中另外还附带有可能导致财产损失的警告。
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按规定使用 Siemens 产品请注意下列说明:警告Siemens 产品只允许用于目录和相关技术文件中规定的使用情况。
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Field Xpert SMT70平板电脑设备配置说明书

ApplicationThe Field Xpert SMT70 tablet PC for device configuration enables mobile plant asset management in hazardous and non-hazardous areas. It is suitable for commissioning and maintenance staff to manage field instruments with a digital communication interface and to record progress. This tablet PC is designed as a complete solution and is an easy-to-use, touch-enabled tool which can be used to manage field instruments during their entire life cycle. It provides extensive, pre-installed driver libraries and offers access to the "Industrial Internet of Things" as well as to information and documentation during the entire life cycle of the device. Field Xpert SMT70 offers a modern software user interface and the option of online updates based on a secure Microsoft Windows 10 multi-functional environment.Your benefits•High-performance, robust tablet with large 11.6" display and a battery runtime of up to 14 hours.•Touch-enabled device configuration software in 20 languages. Includes NAMUR NE 107 instrument diagnosis.•Pre-installed device driver libraries for all of the important industrial protocols.•Fast connection to devices with a single click.•Automatic hardware detection saves time.•Integrated Heartbeat Verification incl. PDF documentation.•Online application software update service offers new functionality and maximum security.Products Solutions ServicesTechnical InformationField Xpert SMT70Universal, high-performance tablet PC for deviceconfigurationTI01342S/04/EN/01.1771357802Field Xpert SMT702Endress+HauserTable of contentsAbout this document ........................3Safety symbols ...............................3Symbols for certain types of information .. (3)Function and system design (3)Function ...................................3System design ................................4Communication and data processing .. (6)Power supply (7)Supply voltage ...............................7Battery ....................................7Performance characteristics (7)Hardware ..................................7Software ...................................7Environment (8)Ambient temperature range ......................8Storage temperature ...........................8Humidity ...................................8Operating height ..............................9Degree of protection ...........................9Shock resistance ..............................9Vibration resistance ............................9Electromagnetic compatibility .....................9Mechanical construction (9)Design, dimensions ............................9Weight ....................................9Materials .. (9)Software operation .........................10Certificates and approvals ...................10CE approval ................................10Radio approval ..............................10Ex approval .. (10)Ordering Information (10)Scope of delivery (10)Accessories ...............................10Documentation . (11)Field Xpert SMT70 (11)Registered trademarks (11)Field Xpert SMT70Endress+Hauser 3About this documentFunction and system designFunctionThe Field Xpert SMT70 tablet PC for universal device configuration supports protocols such as HART,PROFIBUS DP/PA, FOUNDATION Fieldbus, Modbus, and Endress+Hauser service protocols (CDI, ISS,IPC and PCP). The devices can be connected directly via a suitable interfacee.g. a modem (point-to-point) or a bus system (point-to-bus). The Field Xpert software package is fast, easy and intuitive to use. The Field Xpert device library has more than 2,700 pre-installed device and communication drivers. They can be used to operate practically all HART andFOUNDATION Fieldbus devices (FieldComm Group libraries). Furthermore all Endress+Hauser field device drivers are installed. Further device drivers (DTMs) can be installed additionally. The generic HART DTM and PROFIBUS profile DTMs also enable operation of all the important basic functionality of the relevant field devices.Field Xpert SMT704Endress+HauserSystem design1Network architectureThe following modems/interfaces are supported by the Field Xpert SMT70 tablet PC:•HART–Commubox FXA195 (4 to 20 mA)–MACTek Bluetooth modem (4 to 20 mA)–Memograph RSG45 (4 to 20 mA)–MACTek USB modem (4 to 20 mA)•PROFIBUS–Softing PROFIusb –Softing PBpro USB –Fieldgate SFG500•FOUNDATION Fieldbus –NI USB–Softing FFusb •ModbusModbus serial •WirelessHARTWireless HART adapter SWA70•Endress+Hauser service interfaces –Commubox FXA291–Commubox FXA193–TXU10 V2–TXU10 V1–CDI USB –CDI TCP/IPHART point-to-point connection via Commubox FXA195This diagram shows a HART point-to-point connection with an FXA195 USB/HART modem. If an FXA195 is connected to the computer, the Field Xpert SMT70 tablet PC can connect to the device automatically.Field Xpert SMT70Endress+Hauser 52Point-to-point connection with a HART field device 1Field Xpert SMT70 tablet PC 2HART Commubox FXA1953Field deviceTo establish communication with the HART device, a resistor of at least 250 Ω must be provided in the circuit. The way in which this is done depends upon the system architecture and power source used. Please read the FXA195 manual carefully.HART point-to-point connection via MACTek Bluetooth modem3Point-to-point connection via a load resistor 1Load resistor: 250 to 1 100 Ω2HART device3Field Xpert SMT70 tablet PC 4VIATOR Bluetooth modem 5Transmitter power supply unitPROFIBUS point-to-bus connectionThis diagram shows how the connection from PROFIBUS DP to PROFIBUS PA can be established using a Siemens DP/PA Link or a Pepperl+Fuchs SK3.Field Xpert SMT706Endress+Hauser4PROFIBUS point-to-bus connection via Fieldgate SFG5001Field Xpert SMT70 tablet PC 2Ethernet3Fieldgate SFG5004PROFIBUS DP 5Segment coupler 6PROFIBUS PACDI point-to-point connectionThis diagram shows a CDI point-to-point connection with a Commubox FXA291 interface. If this Commubox is connected to the computer, the Field Xpert SMT70 tablet PC can connect to the deviceautomatically.5CDI point-to-point connection with a field device 1Field Xpert SMT70 tablet PC 2Commubox FXA291 CDI3Field device with CDI interfaceCommunication and data processingUSB2 x USB 3.0Wireless LAN Intel Wireless AC7260 802.11 a/b/g/n/ac, DUAL Band WLAN BluetoothBluetooth 4.0 BLE, Class 1Wireless WAN + GPS4G LTE WWAN + 12 channel GPS (optional)Field Xpert SMT70Power supplySupply voltage Voltage19 VCurrent 3.42 ACapacity65 WBattery Replaceable, rechargeable lithium polymer batteryType R11AH R11AH2Voltage11.1 V DC11.1 V DCCapacity4100 mAh (45 Wh)7800 mAh (86 Wh) (optional)Battery life Up to 7 h Up to 14 hPerformance characteristicsHardware CPU Intel Core i5-5200U (2.2 to 2.7 GHz)Working memory8 GB with DDR3L adapterStorage256 GB SSD M2-SATA in the robust versionDisplay11.6" (1366 x 768) LCD display, with Gorilla Glass protectorCapacitive multi-touch screenOptical bonding, sunlight readable, LCD (730 Nit)Ambient light sensorKeys On/offVolumeTouch button for WindowsTouch button for barcode/cameraProgrammable touch buttonAudio****************MicrophoneScanner1D/2D barcode scanner (optional)Camera 2 MP camera on the front5 MP camera on the back with auto focus and LED flash with 1500 mcdSupports geotagging (optional)Sensor Integrated acceleration sensor, gyroscope and eCompassConnections Headphones output jackMicrophone input jackDocking portExtension connection for add-on modulesHF pass-through socket for WWAN and GPSExpansion slots Micro SD card slot, support for SDHC/SDXCSIM card slot for WWAN data communicationSoftware Operating system Windows 10 Pro (64 Bit)Configured software Touch-enabled device configuration software optimized for Field XpertStandard software Standard configurable Windows graphical user interface with icons, short cuts etc. Endress+Hauser7Field Xpert SMT708Endress+Hauser 6Start screen with one-click automatic scan button7Protocol selection for manual selection of connection8Device configurationEnvironmentAmbient temperature range–10 to 55 °C (14 to 131 °F) Storage temperature–20 to 60 °C (–4 to 140 °F) Humidity 5 to 95%Field Xpert SMT70Endress+Hauser9Operating height Max. 4 572 m (15 000 ft)Degree of protection IP65Shock resistance•MIL-STD 810G 516.6 Procedure IV•6 impacts from a height of 1.2 m (4 ft) onto plywood over concrete Vibration resistance MIL-STD 810G 514.6 Procedure I Cat. 24, Fig. 514.6E-1Electromagnetic compatibilityInterference conformance to:•EN 55022: 2010+ AC: 2011•EN 55022 Class B •EN 61000-3-2•EN 61000-3-3Interference immunity:•EN 55024: 2010•IEC 61000-4-2•IEC 61000-4-3•IEC 61000-4-4•IEC 61000-4-5•IEC 61000-4-6•IEC 61000-4-8•IEC 61000-4-11Mechanical constructionDesign, dimensionsStandard version: 298.5 mm ⋅ 192 mm ⋅ 20 mm (11.4 in ⋅ 7.48 in ⋅ 0.78 in)9Front viewWeight 1.2 kg (2.65 lb) with standard battery MaterialsOuter housing: MN-3600 type polycarbonate Inner housing: AlMg metal, type AZ91DField Xpert SMT7010Endress+HauserSoftware operation•Automatic connection to field devices or via wizard •Choice of languages within Field Xpert software:AR, CS, DE, ES, FI, FR, ID, IT, JA, KO, NL, PL, PT, RU, SA, SV, TH, TR, VI, ZH •DTM graphical user interface and language depend on the device and supplierCertificates and approvalsCE approvalField Xpert SMT70 meets all the legal requirements of the relevant EU directives. The manufacturer has affixed the CE mark as confirmation that the Field Xpert SMT70 has been successfully tested.Radio approval CE, FCC, ICEx approvalThis section applies to tablet PC:•Field Xpert SMT70-B1... (ATEX)•Field Xpert SMT70-C1... (NEC/CEC)•Field Xpert SMT70-I1... (IECEx)ATEX (Europe)•ATEX II 3G Ex ic IIC T4 Gc IP64•ATEX II 3D Ex ic IIIB T135°C Dc IP 64NEC/CEC (North America)•NEC/CEC Class 1, Div. 2, Group A-D T4•NEC/CEC Class 1, Zone 2, Group IIC T4IECEx (International)•IECEx Ex ic IIC T4 Gc IP64•IECEx Ex ic IIIB T135° Dc IP64Ordering InformationPlease contact your Endress+Hauser sales center for detailed information on the product structure: or at /smt70Scope of deliveryThe scope of delivery comprises:•Field Xpert SMT70 tablet PC with handle•AC charger (100 to 240 V AC , 1.5 A, 50 to 60 Hz) with EU connecting cable and international adapter set for 150 countries•Software and interfaces/modem as per orderAccessoriesOptional accessories:•X-strap•Shoulder strap •Leather case•Office docking station (2 x USB 3.0, 2 x USB 2.0, 1 x RS232, HDMI, 1 Gbit Ethernet)•Vehicle docking station with vehicle adapter (2 x USB 3.0, 2 x USB 2.0, 1 x RS232, HDMI, 1 Gbit Ethernet, WWAN + GPS antenna connection)•Extra battery, high-capacity 7 800 mAh •Extra battery, standard capacity 4 100 mAh •Battery chargerField Xpert SMT70Endress+Hauser 11Please contact your Endress+Hauser sales center for detailed information on accessories: or at /smt70DocumentationField Xpert SMT70•Operating Instructions BA01709S/00/EN •Innovation Brochure IN01069S/04/ENRegistered trademarksWindows 10 Pro® is a registered trademark of Microsoft Corporation, Redmond, Washington, USA.Intel® Core™ is a registered trademark of Intel Corporation, Santa Clara, USA.Durabook is a registered trademark of Twinhead International Corp., Taiwan.FOUNDATION TM Fieldbus is the trademark of the FieldComm Group, Austin, TX 78759, USA.HART®, WirelessHART® is the registered trademark of the FieldComm Group, Austin, TX 78759,USA.PROFIBUS® is a registered trademark of the PROFIBUS User Organization, Karlsruhe/Germany.Modbus is the registered trademark of Modicon, Incorporated.All other brand and product names are trademarks or registered trademarks of the companies and organizations in question.。
对数与对数运算--优质获奖精品课件 (2)

(2)换底公式的意义与作用 在化简求值过程中,出现不同底数的对数不能运用运算法则,可 先统一化成以同一个正实数为底的对数,再根据运算法则进行化简与 求值. 在使用换底公式时,应根据实际情况选择底数,一般将对数化为 常用对数或自然对数,然后化简求值. 特别地:logab·logba=1(a>0,a≠1,b>0,b≠1). 想一想:计算 log89×log2732= .(抢答)
【答案】 9
10
1.已知 a>0,且 a≠1,则 A.0 B.
1 2
1 loga2+loga 等于( 2
). D.2
C.1
【解析】loga2+loga2=loga(2×2)=loga1=0. 【答案】A
1
1
2.若 a>0,且 a≠1,M>0,N>0,且 M>N,给出下列式子: ①logaM·logaN=loga(M+N); ②logaM·logaN=loga(M·N);
������ lo g ������ M ③loga ������ = lo g N ; ������
④logaM-logaN=loga(M-N). 其中不正确的有( ). A.1 个 B.2 个
C.3 个
D.4 个
【解析】本题考查对数运算性质的掌握情况,与运算性质对照,4 个选项都是错误的. 【答案】D
2 2 右边=������ =lo g k =2logk6=logk36, 6 2 1 2 ∴������ +������ =������ .
a b c
1 3 2
1 34
3
4
(法二)对 3 =4 =6 ,两边同时取常用对数得: a b c lg 3 =lg 4 =lg 6 ,∴alg 3=blg 4=clg 6,
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2014年1-6月份全国固定资产投资(不含农户)增
长17.3%
来源:国家统计局发布时间:2014-07-16 10:00
2014年1-6月份,全国固定资产投资(不含农户)212770亿元,同比名义增长17.3%(扣除价格因素实际增长16.3%),增速比1-5月份提高0.1个百分点。
从环比速度看,6月份固定资产投资(不含农户)增长1.45%。
分产业看,1-6月份,第一产业投资4820亿元,同比增长24.1%,增速比1-5月份提高3.3个百分点;第二产业投资89186亿元,增长14.3%,增速提高0.3个百分点;第三产业投资118764亿元,增长19.5%,增速与1-5月份持平。
第二产业中,工业投资87475亿元,同比增长14.2%,增速比1-5月份提高0.2个百分点;其中,采矿业投资5700亿元,增长4.5%,增速回落2.9个百分点;制造业投资72643亿元,增长14.8%,增速提高0.6个百分点;电力、热力、燃气及水生产和供应业投资9132亿元,增长16.2%,增速回落0.8个百分点。
第三产业中,基础设施投资(不含电力)34094亿元,同比增长25.1%,增速比1-5月份提高0.1个百分点。
其中,水利管理业投资增长34.2%,增速回落2.2个百分点;公共设施管理业投资增长25.5%,增速回落0.6个百分点;道路运输业投资增长23.5%,增速回落0.8个百分点。
铁路运输业投资增长14.2%,增速提高5.9个百分点。
分地区看,1-6月份,东部地区投资100921亿元,同比增长16.3%,增速比1-5月份提高0.1个百分点;中部地区投资58327亿元,增长19.2%,增速回落0.1个百分点;西部地区投资52395亿元,增长18.6%,增速提高0.2个百分点。
分登记注册类型看,1-6月份,内资企业投资201840亿元,同比增长18.3%,增速比1-5月份提高0.1个百分点;港澳台商投资5159亿元,增长4.8%,增速提高0.3个百分点;外商投资4965亿元,增长0.1%,1-5月份为下降0.1%。
从项目隶属关系看,1-6月份,中央项目投资9554亿元,同比增长
14.6%,增速比1-5月份提高5.9个百分点;地方项目投资203217亿元,增长17.5%,增速回落0.1个百分点。
从施工和新开工项目情况看,1-6月份,施工项目计划总投资738771亿元,同比增长14.5%,增速比1-5月份提高1.3个百分点;新开工项目计划总投资196843亿元,同比增长13.6%,增速提高0.9个百分点。
从到位资金情况看,1-6月份,固定资产投资到位资金246051亿元,同比增长13.2%,增速比1-5月份提高0.2个百分点。
其中,国家预算资金增长15.5%,增速比1-5月份回落4.2个百分点;国内贷款增长12.9%,增速回落0.6个百分点;自筹资金增长16.7%,增速提高0.6个百分点;利用外资下降8.3%,降幅缩小2.1个百分点;其他资金下降1.8%,降幅扩大0.6个百分点。
2014年1-6月份固定资产投资(不含农户)主要数据
指 标
2014年1-6月份
绝对量
同比增长(%)
固定资产投资(不含农户)(亿元) 212770 17.3 其中:国有及国有控股 65667
14.8
分项目隶属关系
中央项目 9554 14.6 地方项目 203217
17.5
按构成分
建筑安装工程
145944 20.4 设备工器具购置 40448 11.6 其他费用 26379
10.7
分产业
第一产业 4820 24.1 第二产业 89186 14.3 第三产业 118764
19.5
分行业
农林牧渔业 5942 21.8 采矿业
5700 4.5 其中:煤炭开采和洗选业 1935 -5.6 石油和天然气开采业 1250 18.5 黑色金属矿采选业 752 10.8 有色金属矿采选业 667 -5.6 非金属矿采选业 879 13.2 制造业
72643 14.8 其中:农副食品加工业
4149 20.6 食品制造业
1856 22.8 纺织业
2329 14.9 化学原料和化学制品制造业 6274 9.2 医药制造业
2266 16.4 橡胶和塑料制品业
2641 17.1 非金属矿物制品业
6839 14.7 黑色金属冶炼和压延加工业 2157 -8.4 有色金属冶炼和压延加工业 2562 7.4 金属制品业 3730 22.4 通用设备制造业 5338 19.9 专用设备制造业
4950 14.0 汽车制造业
4507 12.1
铁路、船舶、航空航天和其他运输设
备制造业
1389 17.3 电气机械和器材制造业
4639
16.0
计算机、通信和其他电子设备制造
3447 9.4 业
电力、热力、燃气及水生产和供应业9132 16.2 其中:电力、热力生产和供应业7049 19.0 建筑业2060 15.8 交通运输、仓储和邮政业16518 22.8 其中:铁路运输业2045 14.2 道路运输业9862 23.5 水利、环境和公共设施管理业18816 26.4 其中:水利管理业2600 34.2 公共设施管理业15515 25.5 教育2804 20.6 卫生和社会工作1604 21.4 文化、体育和娱乐业2689 23.2 公共管理、社会保障和社会组织2702 16.2 分注册类型
其中:内资企业201840 18.3 港澳台商投资企业5159 4.8
外商投资企业4965 0.1 分施工和新开工项目
施工项目计划总投资738771 14.5 新开工项目计划总投资196843 13.6 固定资产投资(不含农户)到位资金246051 13.2 其中:国家预算资金11004 15.5 国内贷款31011 12.9
利用外资1914 -8.3
自筹资金170901 16.7
其他资金31221 -1.8 注:1.此表中速度均为未扣除价格因素的名义增速。
2.此表中部分数据因四舍五入的原因,存在总计与分项合计不等的情况。
附注
1、指标解释
固定资产投资(不含农户):是以货币形式表现的在一定时期内完成的建造和购置固定资产的工作量以及与此有关的费用的总称。
到位资金:是指固定资产投资单位在报告期内收到的,用于固定资产投资的各种货币资金,包括国家预算资金、国内贷款、利用外资、自筹资金和其他资金。
新开工项目:是指报告期内所有新开工的建设项目。
国有及国有控股:在企业的全部实收资本中,国有经济成分的出资人拥有的实收资本(股本)所占企业全部实收资本(股本)的比例大于50%的国有绝对控股。
在企业的全部实收资本中,国有经济成分的出资人拥有的实收资本(股本)所占比例虽未大于50%,但相对大于其他任何一方经济成分的出资人所占比例的国有相对控股;或者虽不大于其他经济成分,但根据协议规定拥有企业实际控制权的国有协议控股。
投资双方各占50%,且未明确由谁绝对控股的企业,若其中一方为国有经济成分的,一律按国有控股处理。
行政和事业单位的投资项目都属于国有控股。
登记注册类型:划分企业登记注册类型的依据是工商行政管理部门对企业登记注册的类型,按照国家统计局、国家工商行政管理总局联合印发《关于划分企业登记注册类型的规定》的通知(国统字〔2011〕86号)执行。
划分个体经营登记注册类型是依据国家统计局相关规定,按照国家统计局《关于“个体经营”登记注册类型分类及代码的通知》(国统办字〔1999〕2号)执行。
固定资产投资统计报表制度规定,基层统计单位均要填报登记注册类型。
登记注册类型由从事固定资产投资活动的企业或个体经营单位填报。
已在工商行政管理部门登记的,按登记注册类型填报,未登记的,按投资者的登记注册类型或有关文件的规定填报。
其中内资企业包括国有企业、集体企业、股份合作企业、联营企业、有限责任公司、股份有限公司、私营企业和其他企业。
港澳台商投资企业包括合资经营企业、合作经营企业、港澳台商独资经营企业、港澳台商投资股份有限公司和其他港澳台商投资企业。
外商投资企业包括中外合资经营企业、中外合作经营企业、外资企业、外商投资股份有限公司和其他外商投资企业。
2、统计范围
计划总投资 500万元以上的固定资产项目投资及所有房地产开发项目投资。
3、调查方法
固定资产投资统计报表按月进行全面调查(1月份数据免报)。
4、东、中、西部地区划分
东部地区包括北京、天津、河北、辽宁、上海、江苏、浙江、福建、山东、广东、海南11个省(市);中部地区包括山西、吉林、黑龙江、安徽、江西、河南、湖北、湖南8个省;西部地区包括内蒙古、广西、重庆、四川、贵州、云南、西藏、陕西、甘肃、青海、宁夏、新疆12个省(市、自治区)。
5、行业分类标准
2012年起,国家统计局执行新的国民经济行业分类标准(GB/T 4754-2011),具体请参见
/tjsj/tjbz/hyflbz
6、增长速度计算
固定资产投资增长速度为名义增速,由于固定资产投资价格指数按季进行计算,除1-3月、1-6月、1-9月、1-12月可计算固定资产投资实际增速外,其他月份只计算名义增速。
7、环比数据修订
根据季节调整模型自动修正程序,对2013年6月份以来的固定资产投资(不含农户)环比增速进行修订。
修订结果及2014年6月份环比数据如下:
年度月份环比增速(%)
2013年
6月 1.28 7月 1.55 8月 1.66 9月 1.26 10月 1.10 11月 1.39 12月 1.33
2014年1月 1.40 2月 1.25 3月 1.27 4月 1.23 5月 1.37 6月 1.45。