主键

main key的用法和样例:

例句

  1. Click the row selector for the current primary key.单击当前主键的行选择器。
  2. A table can have only one primary key.一个表只能有一个主键。

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 unfold [ Qn5fEuld ] The landscape unfo

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我是最近订婚的。我问我的姨妈简(她跟姨夫鲍勃结婚已三十四年了),她认为他们长久结合的成功关键是什么。她说:我们尽量不吵架,我们相互尊重对方的隐私。。。 这时姨夫鲍勃打断她说:她白天上班,我晚上上班。

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walkie-talkie,对讲机, lovey-dovey 多情的 okey-dokey 好的啦 tittle-tattle 聊八卦 easy-peasy 超级简单 Mumbo Jumbo 莫名其妙的话 Z: I've got one for you. Mumbo jumbo. 给你分享一个。Mumbo jumbo。 M: What does it mean? I d

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By Stephanie Ho Washington 20 November 2006 This year's Nobel Peace Prize recipient, Muhammad Yunus, says the award is shining the international spotlight on the fundamental link between alleviating poverty and maintaining peace. He spoke to reporte

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Part 4. University Campus. A. Keywords. administration, auditorium, clinic, mathematics, chemistry, physics, library, history, Chinese, education, philosophy, geography, foreign languages, sports ground, psychology. Vocabulary. auditorium, You are go

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Sarah Connor - Music Is The Key Key To My Soul listen people Sarah Connor Naturally Seven Music Is The Key People, have always been singing To wipe away tears, to ease all the pain (oh) Music, has always been healing Some people just sometimes, and o

发表于:2019-01-10 / 阅读(75) / 评论(0) 分类 英语歌曲收藏之一

Key To My Heart 孤单的日子 - 你握着我心门的钥匙 演唱者:craig david 英文歌词 Lonely hours, Lonely days, Never meant to drive you away from me, I shouldda listened to ya lady and what you had to say, If only... I never knew how m

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OK, Okay, Okey-Dokey Are A-Okay Now, the VOA Learning English program, Words and Their Stories. Millions of people all over the world use the word okay. In fact, some people say the word is used more often than any other word in the world. It may be

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今天我们要学的词组是key。 Key是钥匙, 作为形容词,也有主要,重要和核心的意思。 比如克劳德.莫奈是法国印象派的主要画家, Claude Monet was a key figure in the French Impressionist movement。 美国前

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By Nick Wadhams Nairobi 26 December 2007 Kenya's religious leaders played an important role before this week's national elections, urging followers to vote and refrain from violence. As Nick Wadhams reports from Nairobi, pastors and priests have also

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By Deborah Tate Washington 15 February 2008 The chairman of the U.S. Senate Intelligence Committee is to meet with his House counterpart Friday to try to resolve the political standoff over legislation to overhaul wiretapping legislation before curre

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英文歌词: Lonely hours, Lonely days, Never meant to drive you away from me, I shouldda listened to ya lady and what you had to say, If only... I never knew how much you feel for somebody after you've let them go (let them go) And you find out that i

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今天我们要学的词是low-key。 Low-key, 低调的,不张扬的。 The actor leads a low-key life off screen, 这个演员在银幕背后的日常生活中十分低调。 Pop singer Britney Spears is reportedly planning to get married and she

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奇妙的调子 The Magic Key 听好 Listen up! 为了将来我改变自己 To my days change my ways 生活里这突如其来的终点 This sudden end to my days 让我想要改变自己 Makes me wish I'd changed my ways 混迹帮派花去很多时间

发表于:2019-02-07 / 阅读(67) / 评论(0) 分类 好听的英文歌曲

ROME, Oct. 23 (Xinhua) -- AC Milan head coach Massimiliano Allegri said that substitutes were the key to his side's comeback 4-3 win over Lecce on Sunday. As Milan fell behind 3-0 in the first half, Kevin-Prince Boateng came off the bench and scored

发表于:2019-02-07 / 阅读(107) / 评论(0) 分类 英语新闻

Key European banks are facing new financial worries over their Greek debt holdings, with the Belgian-French bank Dexia struggling to avoid collapse. Shares of Dexia stock plummeted Tuesday to an all-time low of less than one euro (less than $1.32), e

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Have you ever seen bamboo shoots in a storm? I have. I remember huddling in a hut in Thailand watching a raging typhoon sweep through the mountains. The clump of bamboo outside the window was completely flattened by the raging winds. The wind was so

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今天我们要学的词组是key。 Key是钥匙, 作为形容词,也有主要,重要和核心的意思。 比如克劳德.莫奈是法国印象派的主要画家, Claude Monet was a key figure in the French Impressionist movement。 美国前

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MILAN, Italy, June 21 (Xinhua) -- What do a Richmond skirt and a pair of Zara pants have in common? In the current fashion world, good matching is the key, a renowned Italian fashion entrepreneur told Xinhua in an interview Tuesday. Speaking of the j

发表于:2019-02-07 / 阅读(104) / 评论(0) 分类 英语新闻

Tensions remain high between Russia and Georgia, especially over the breakaway Georgian regions of Abkhazia and South Ossetia and Georgia's bid to become part of NATO. In this report from Washington, Senior Correspondent Andr de Nesnera looks at why

发表于:2019-02-07 / 阅读(90) / 评论(0) 分类 VOA标准英语2008年(八月)
学英语单词
a heart attack
Acer ginnala
aeroasthenia
aluminum magnesium alloy
anti-induction
ascites vaginalis
astrolater
autoradiographing
avian genetics
book-stores
broiled meat
built-up flask
Busanga Swamp
call in action
cardioclasis
Castanopsis jianfenglingensis
caustic washing tank
chuckle to oneself
condamn
Cordelias
cow-turd
cross-section estimator
dark-room
deficit index
detainable
direct-axis subtransient voltage
disaggrega-tire
dispatch earning
dissociated sensory disturbance
double-punch and blank-column detection
dynamic control
dysopia algera
electromagnetic pendulum
entombment
equivalent conductivity
finger ring
fulcre
gregaloid
handbaggings
haoyou
Harrington Park
hemstitch
hexafluorophosphoric acid
high iron metal heat
homodiegetic narrative
hypertext system
i.h
ill-mades
impairment of a law
instantaneous erection
instruction for sale and purchase
interbranchialis muscle
ISR (information storage and retrieval)
kenmores
late greeks
Latent semantic indexing
leading plaintiff
Lipoche
lower-half shell
major critical component
matrix code
Melóng
metallic clothing
Mimisal
misfeeds
monothiophosphate
negative thermion
Notopterol
operating value
Oxedix
pay instalment
petrosal nerve
planar double enveloping wormwheel
point four
polymorphic language
proforma financial statement
pulaskite oplite
Radix sympathetica
raw film
region-specific
registration due
rim horsepower
savelha
secretarial schools
semi graphic panel
shopping cart software
shortwave diathermy machine
size fraction of crushed coal
sprat-barley
statistical dispersion
strum
surpermarket TV
synchronous tracking computer
the Archean
thornhedge
tuberculous salpingitis
under current circuit breaker
variable gain amplifier
vizierates
waitzkin
whimsically
WHOIS WHOIS