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在當(dāng)今大數(shù)據(jù)時(shí)代,數(shù)據(jù)管理已成為企業(yè)發(fā)展的重要組成部分。高分?jǐn)?shù)數(shù)據(jù)庫便是在海量數(shù)據(jù)中快速、高效地進(jìn)行數(shù)據(jù)管理的得力工具。

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一、什么是高分?jǐn)?shù)數(shù)據(jù)庫?
高分?jǐn)?shù)數(shù)據(jù)庫是一種專業(yè)的數(shù)據(jù)庫軟件,它支持分布式存儲(chǔ)和快速分析。相較于傳統(tǒng)數(shù)據(jù)庫,高分?jǐn)?shù)數(shù)據(jù)庫可以支持大規(guī)模的海量數(shù)據(jù),并且在數(shù)據(jù)訪問、數(shù)據(jù)安全等方面有著突出的性能優(yōu)勢(shì)。
二、高分?jǐn)?shù)數(shù)據(jù)庫的特點(diǎn)
1. 支持分布式存儲(chǔ)和快速分析
高分?jǐn)?shù)數(shù)據(jù)庫支持?jǐn)?shù)據(jù)的分布式存儲(chǔ),可以通過數(shù)據(jù)的分片和多副本備份等方式實(shí)現(xiàn)數(shù)據(jù)在多臺(tái)計(jì)算機(jī)上的存儲(chǔ),從而保證了數(shù)據(jù)的高可用性和可擴(kuò)展性。
同時(shí),高分?jǐn)?shù)數(shù)據(jù)庫具有快速分析的能力,可以對(duì)大規(guī)模的數(shù)據(jù)進(jìn)行高速的查詢和分析,提升數(shù)據(jù)處理的效率和精度。
2. 高性能的數(shù)據(jù)訪問和處理
高分?jǐn)?shù)數(shù)據(jù)庫可以采用多種方式進(jìn)行數(shù)據(jù)訪問和處理,如分布式查詢、MapReduce等,從而可以在海量數(shù)據(jù)中快速定位、檢索和分析所需數(shù)據(jù)。
3. 數(shù)據(jù)安全的保障
高分?jǐn)?shù)數(shù)據(jù)庫在數(shù)據(jù)的安全性方面也具有很強(qiáng)的保障。它可以為數(shù)據(jù)設(shè)置多層次的權(quán)限控制和安全認(rèn)證機(jī)制,保證數(shù)據(jù)的機(jī)密性、完整性和可靠性。
4. 可擴(kuò)展和易于管理
高分?jǐn)?shù)數(shù)據(jù)庫具有可擴(kuò)展性和易于管理的特點(diǎn),可以通過添加新的節(jié)點(diǎn)和擴(kuò)容來實(shí)現(xiàn)數(shù)據(jù)的動(dòng)態(tài)擴(kuò)展,同時(shí)提供了完善的管理工具和接口,方便管理員進(jìn)行系統(tǒng)的管理和維護(hù)。
三、高分?jǐn)?shù)數(shù)據(jù)庫的實(shí)際應(yīng)用
高分?jǐn)?shù)數(shù)據(jù)庫已經(jīng)廣泛應(yīng)用于多個(gè)領(lǐng)域,包括互聯(lián)網(wǎng)、金融、醫(yī)療、能源等。
例如,在互聯(lián)網(wǎng)領(lǐng)域,高分?jǐn)?shù)數(shù)據(jù)庫可以幫助企業(yè)快速處理用戶行為數(shù)據(jù)、廣告效果數(shù)據(jù)等,提升用戶體驗(yàn)和業(yè)務(wù)效益。在金融領(lǐng)域,高分?jǐn)?shù)數(shù)據(jù)庫可以用于交易數(shù)據(jù)的快速處理和分析,提高交易效率和監(jiān)管能力。在醫(yī)療領(lǐng)域,高分?jǐn)?shù)數(shù)據(jù)庫可以輔助醫(yī)療機(jī)構(gòu)進(jìn)行疾病趨勢(shì)的分析、治療方案的優(yōu)化等工作,提升醫(yī)療服務(wù)的水平和質(zhì)量。
四、
高分?jǐn)?shù)數(shù)據(jù)庫作為一種重要的數(shù)據(jù)管理工具,已經(jīng)成為企業(yè)在大數(shù)據(jù)時(shí)代進(jìn)行數(shù)據(jù)處理和分析的利器。它的高性能、可擴(kuò)展性、數(shù)據(jù)安全性等特點(diǎn),為企業(yè)在日常經(jīng)營中提供了強(qiáng)有力的支持,為未來的發(fā)展奠定了堅(jiān)實(shí)的基礎(chǔ)。因此,我們應(yīng)該加強(qiáng)對(duì)高分?jǐn)?shù)數(shù)據(jù)庫的了解和學(xué)習(xí),積極運(yùn)用其中的優(yōu)勢(shì)來提升企業(yè)的核心競爭力。
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新托福寫作全觀深度解答18問?
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同學(xué)您好:新托福寫作是中國考生的弱項(xiàng),其中語法、用詞以及邏輯思維是寫作的問題所在,只有在日常生活中多讀些范文,了解新托福寫作中的邏輯思維,從哪方面考慮問題,句型難度,才可更好的進(jìn)行鍛煉。以下我們整理了一些關(guān)于寫作評(píng)斷的權(quán)威信息?! ∧壳皩?duì)新托福考試的很多理解和看法基本定形。本文通過綜合多個(gè)權(quán)威信息渠道的信息(Official Guide,Teacher’sGuide,Propell Workshop Manual,以及ETS高級(jí)專員Susan Hines的講解和對(duì)本人私下提問的回答等),試圖為大家揭開新托福寫作眾多關(guān)鍵問題的答案。
本文分為三個(gè)部分:其中Independent Writing Task 9個(gè)問題,Integrated Writing Task 6個(gè)問題,以及牽涉全局寫作的3個(gè)問題。
Independent Task
Q: Independent Writing Task有沒有題庫?
A: 沒有,但是可以借鑒TWE的題庫。
”You will see topics very similar to these on the TOEFL i.”
Q: 準(zhǔn)備Independent Writing Task需不需要專業(yè)知識(shí)?
A: “None of the topics requires specialized knowledge. Most topics are general and arebased on the common experience of people in general and students in particular.”
Q: 寫作的時(shí)候,觀點(diǎn)重不重要?
A: “It does not matter whether you agree or disagree with the topic; the raters are trainedto accept all varieties of opinions.”
”I think test takers had better simply pick one side rather than straddle the fence.”
”Creativity is not necessary.”
Q: 是否可以通過增加深刻的邏輯和復(fù)雜的例子來掩蓋或者彌補(bǔ)語言能力的不足?
A: 不可以。
”If your language is hard to follow, your sentences are overly simple, and your vocabulary islimited, you may score no higher than 3 no matter how impressive your ideas may be.”
而且從例子的選擇上講,并不要求使用龐大、復(fù)雜的例子,盡管這些例子可能論證力更強(qiáng)。個(gè)人經(jīng)歷就是一種很好寫的例子。閱卷人并不高彎依據(jù)論據(jù)的復(fù)雜性來看文章。
”Personal experiences are common.”
Q: 可不可以使用前人的模板(templates)來寫作?
A: 那要看你怎么定義”模板”這個(gè)詞。如果”模板”指的是段落結(jié)構(gòu)和文章結(jié)構(gòu),那戚槐悶沒有任何問題,比如”五段式結(jié)構(gòu)”可能會(huì)一直是TOEFL文章明稿更好的寫法。但如果”模板”是指背下來的,可以不加思考就可以套到任何題目上的段落內(nèi)容,那就千萬不要這樣做。
Do not “memorize” long introductory and concluding paragraphs just to add words to youressay. Raters will not look favorably on wordy introductory and concluding paragraphs such asthe following:
”The importance of the issue raised by the posed statement, namely creating a new holidayfor people, cannot be underestimated as it concerns the very fabric of society. As it stands,the issue of creating a new holiday raises profound implications for the future. However,although the subject matter in general cannot be diissed lightheartedly, the perspective ofthe issue as presented by the statement raises certain qualms regarding practicalapplication.”
”In conclusion, although I have accept that it is imperative that something be done aboutcreating a new holiday for people and find the underlying thrust of the implied proposalutterly convincing, I cannot help but feel wary of taking such irrevocable steps andpersonally feel that a more measured approach would be more rewarding.”
Likewise, raters will not look favorably on paragraphs like the following, which uses a lot ofwords but fail to develop any real ideas:
”At the heart of any discussion regarding an issue pertaining to creating a new holiday, ithas to borne in mind that a delicate line has to be trod when dealing with such matters. Thehuman resources involved in such matters cannot be guaranteed regardless of all the goodintentions that may be lavished. While it is true that creating a new holiday might be a viableand laudable remedy, it is transparently clear that applied wrongly such a course of actioncould be calamitous and compound the problem rather than provide a solution.”
”I think you could use it as long as it is on topic.”
Q: 閱卷人最主要看重文章的哪些方面?
A: Your ability
to respond directly to the question;
to take a clear position; and
to write an essay characterized by (1) good organization, (2) proper use of supportingexamples, (3) sentence variety, and (4) correct sentence structures.
Q: 5分和4分更大的區(qū)別在哪里?
A: “Those that receive a score of 4 also have clear, well-written essays, but there are moreflaws and the ideas are less developed.”
Q: 詞匯和句式是不是越復(fù)雜越好?
A: 詞匯和句式需要一定的復(fù)雜性。
”Raters will also judge your essay based on the complexity of sentence structures and onthe quality and complexity of your vocabulary. If you use very simple sentences and verybasic vocabulary, you will probably not be able to express very complex ideas.”
但是,不是越復(fù)雜越好。
就詞匯而言,關(guān)鍵是表達(dá)的準(zhǔn)確性。請(qǐng)參看OG第287頁的滿分范文1,評(píng)語中有這樣一句話:The writerdoes not use high-level vocabulary, but word choice is correct throughout.同時(shí)請(qǐng)參看Workbook第57頁的范文,同樣沒有big words,也是滿分。
就句式而言,關(guān)鍵是表意準(zhǔn)確、流暢且能夠變化。但為了達(dá)到變化或者準(zhǔn)確表達(dá)復(fù)雜意思的目標(biāo),出現(xiàn)一些復(fù)雜的句式是很正常的。但一味追求復(fù)雜是沒有意義的。
Q: 文字是不是越正式(formal)越好?
A: 不是。Independent Writing Task并不偏好formal expressions.只要能把意思表達(dá)清楚,并把問題回答好了,就行了。參見OG第288頁滿分范文2,評(píng)語中這樣寫道:the writer consistentlydemonstrates command of language and English idioms, especially by using various informalexpressions (“Let’s assume,” “we would all agree,” “can make or beak,” “come in very handy”).
Integrated Task
Q: 閱讀文章和聽力文章有幾種可能的關(guān)系?
A: There are three kinds of connections between the reading passage and the listeningpassage.
a. The listening passage that challenges the points made in the reading.
b. The listening passage that presents the reasons/ways the problem described in thereading passage is solvable or really not a problem at all.
c. The listening passage that supports the points made in the reading.
目前考的都是Contrast題目(只有一次考到了Solution,但也和Contrast差不多),預(yù)計(jì)在不久的將來也不會(huì)有太大變化。根據(jù)ETS高級(jí)專員(Assesent Specialist II)Susan Hines 的說法,目前題庫中還沒有出過關(guān)于support的題目(“Comparison is not available now.”),所以建議大家主要針對(duì)contrast題目進(jìn)行訓(xùn)練,偶爾也可以用朗文的光盤訓(xùn)練一下solution的寫法。
Q: 閱讀文章和聽力文章之間一般會(huì)有幾點(diǎn)相關(guān)聯(lián)?
A: “Typically the main idea will be developed with three points.”
Q: 文章中可不可以出現(xiàn)自己對(duì)所談問題的看法?
A: “Remember that you are NOT being asked for your opinion. You ARE being asked toexplain how the points in the listening relate to points in the reading.”
Q: 寫作的時(shí)候可不可以照搬閱讀和聽力中的原話?
A: 總的來講,照搬原文是不可以的。關(guān)鍵詞可以不變,但是整體內(nèi)容必須被paraphrase出來,特別是閱讀材料里面的內(nèi)容。
”In English-speaking countries, you must follow the rules for citing when you use the samewords of the original speaker or author. If you do not do this, it is considered a form ofintellectual stealing, called plagiari. While this may be accepted in some cultures, it is notacceptable in most English-speaking academic settings. Therefore, paraphrasing skills areimportant to learn.”
”Restatement and paraphrasing is, of course, needed.”
Q: 5分和4分的區(qū)別在哪里?
A: “A response that scores at level 4 has many of the characteristics of a 5, but it doesnot reflect the content of the listening passage as accurately.”
Q: 高分(5分、4分)和3分的區(qū)別在哪里?
A: “The response may omit one major key point made in the lecture.”
”Response generally cannot receive a score higher than 3 if they do not address all threepoints and usually need to address two of the points of contrast.”
”Responses that earn a score of 3 respond to the prompt, but they are vaguer thaneither 4 or 5 responses. Some details might be incorrect or altogether missing and inaccuraciesincrease. This combination may cause the reader to be slightly confused.”
All Writing Tasks
Q: 高分(5分和4分)和低分(1~3分)在評(píng)分程序上有什么區(qū)別?
A: 總的來講,高分(4和5分)的文章要符合評(píng)分標(biāo)準(zhǔn)上的所有要求才能評(píng)為高分,但是低分文章(1到3分)只要符合評(píng)分標(biāo)準(zhǔn)的某一條就可以評(píng)為低分。
”In general, responses should be scored at the highest levels (4 or 5) if all the scoredescriptors fit the response. In contrast, a response should be scored at one of the lowerlevels (3, 2, or 1) if some or any of the score descriptors noticeably fit the response.”
Q: 拼寫錯(cuò)誤和語言問題要不要緊?
A: 關(guān)于這一點(diǎn),我們要一分為二來看。一方面,我們沒必要吹毛求疵;閱卷人知道這是first draft并且是under timed condition,只要看得懂,不構(gòu)成理解障礙,就沒太大問題(minor flaw)。另一方面,語法和拼寫還是重要的,一旦這些小錯(cuò)誤導(dǎo)致閱卷人覺得難以理解,就會(huì)構(gòu)成重大問題(major flaw)。
把”dependence”寫成”dependency”沒太大問題;偶爾把”becomes independent”寫成了”becomes independency”是個(gè)可以看到的錯(cuò)誤,但還是問題不大;偶爾寫出”They prefer to bedepended on their parents.”這樣的奇怪句子也會(huì)得到閱卷人的寬恕。
”O(jiān)ccasional language errors will not count against you as long as they do not cause you tomisrepresent the meaning of points from the reading and the lecture.”
”If your essay includes a few minor lexical and grammar errors, you can still get a highscore. However, if you make a lot of grammar errors and if those errors make it hard tounderstand your meaning, you will get a lower score.”
Q: 字?jǐn)?shù)是不是很重要?
A: 首先,字?jǐn)?shù)沒有上限。
其次,目前字?jǐn)?shù)會(huì)比以前更有意義,因?yàn)榭荚囉杏?jì)數(shù)器專門動(dòng)態(tài)顯示字?jǐn)?shù),為的是讓考生對(duì)自己的字?jǐn)?shù)做到心里有數(shù)。而且兩篇文章都有了推薦字?jǐn)?shù)。所以,我的建議是超過這個(gè)建議字?jǐn)?shù),雖然不用超過太多。(Integrated Task超過150,Independent Task超過300)
最后,關(guān)鍵是內(nèi)容,而不是數(shù)量。不要為了求字?jǐn)?shù)而導(dǎo)致文章很啰嗦。
”Suggested length is between 150 to 225 words. You will not be penalized if you writemore, so long as what you write answers the question.”
”An effective response is typically about 300 words long. If you write fewer than 300words, you may still receive a top score, but experience has shown that shorter responsestypically do not demonstrate the development of ideas needed to earn a score of 5. There isno maximun word limit. You may write as much as you wish in the time alloted.”
”The length is not considered.”
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托福獨(dú)立寫作需要考生準(zhǔn)備大量的語料,而且需要對(duì)必要的句式結(jié)構(gòu)、模板句型有一定的熟悉賀局度;托福綜合寫作是考核考生英語綜合能力的,不單純是寫作的能力,同樣還包括了閱讀以及聽力的理解能力,建議你參考一下
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在托福寫作考試題目中,作者提出一個(gè)問題和兩種完全相反的觀點(diǎn),要你從中選擇一個(gè)立場(chǎng),并用相關(guān)的例子或理由支持證明你的觀點(diǎn)。其實(shí)這道題你的觀點(diǎn)是YES or NO都不是重要的,重要的是你用什么論據(jù)論點(diǎn)來證明你的說法,要有句可依。
持一立場(chǎng)
針對(duì)某一個(gè)論題,每一種觀點(diǎn)都有它的理由。同樣,在托福作文中也不存在著唯一的觀點(diǎn)和內(nèi)容。這時(shí),你可以從兩個(gè)完全相反的觀點(diǎn)中選擇一個(gè)立場(chǎng)。關(guān)鍵在于你如何說服讀者:盡管存在著相反的立場(chǎng),你的觀點(diǎn)從總體上來說仍然是更具說服力的。
一般說來,應(yīng)該選擇那個(gè)政治上正確的或者大多數(shù)考生會(huì)選擇的觀點(diǎn)。當(dāng)然,如果你不擅長寫這種文章,你可以適當(dāng)?shù)卣{(diào)整一下內(nèi)容以適應(yīng)你較習(xí)慣的舒服的表達(dá)方式。但總的說來,文章要均衡,不要包含高度爭議性的論述。不要把這里當(dāng)成思想家的論壇。寫一篇高度爭議性的文章只會(huì)讓讀者對(duì)你產(chǎn)生偏見,同時(shí)也會(huì)使電腦評(píng)分器費(fèi)解,因?yàn)檫@種文章和其數(shù)據(jù)庫里所儲(chǔ)存的文章差別太大。所以,針對(duì)問題時(shí)盡量使用較冷靜平和的語氣。盡管如此,你也不能不選擇一個(gè)立場(chǎng)。你必須選擇一個(gè)將要“出現(xiàn)”在開頭段落和結(jié)論段落里的觀點(diǎn)。當(dāng)然,考試時(shí),題目會(huì)讓你選擇一種觀點(diǎn),但你必須明確地表述出來。
文章的深度
每篇文章你只有30分鐘,這么短的時(shí)間內(nèi)你不可能覆蓋每一個(gè)推理,反駁和例子。當(dāng)你開始考試時(shí),抽出幾分鐘的時(shí)間確定要寫的論點(diǎn)和例子。你不必包含每個(gè)論題和概念。大部分學(xué)生都沒有足夠的時(shí)間覆蓋他想覆蓋的內(nèi)容。所以,只要選擇其中更具說服力的點(diǎn)和例子。其實(shí),判分者也不期望你對(duì)每個(gè)論題都作深入的探討。
這里最重要的是你的作文不要離題。抓住要點(diǎn)。不要扯遠(yuǎn)了也不要過分集中在某個(gè)例子上。
例子從何而來
題目會(huì)告訴你可以利用自己的經(jīng)歷來展開你的論點(diǎn),得出結(jié)論。這種方法是可以的,但不要過分。你的推理依據(jù)應(yīng)該更偏向于所學(xué)到的知識(shí)而非個(gè)人經(jīng)歷。你所舉的例子或者知識(shí)可能很吸引人,但不要試圖深入。因?yàn)橥懈W魑臏y(cè)試的是你基本寫作能力,而非你的專業(yè)知識(shí)。留學(xué)生:盡量多讀一些美國雜志,以適應(yīng)美國人寫作的習(xí)慣和跟上時(shí)代的潮流。
保持簡潔判清
試著將自禪沖讓己放在評(píng)分者的位置上,他們整天在為作文判分。你希望看到一篇包含5段每段4句的簡潔的有效的文章還是4段每段10句的散漫的文章呢?簡而言之:確保你的作文干脆,簡潔能取悅評(píng)分者。在Issue部分這尤其重要,因?yàn)樵谶@里你表達(dá)的是你自己的觀點(diǎn)。
關(guān)于js 怎么調(diào)用MySQL中的數(shù)據(jù)來繪制曲線圖?
ajax 異步獲得數(shù)據(jù)
你用什么東西寫代碼的,用JAVA或者C#或者其他的獲取數(shù)據(jù)庫數(shù)據(jù)很簡單滑閉仔,然后通過異步傳到。
function buynow() {
$.ajax({
type: “GET”,
url: “信汪/ashx/ashxchecksession.ashx”,
timeout: 5000,
success: function (data) {
buynow_do(data);
},
complete: function (XMLHttpRequest, status) {
if (status == ‘timeout’) {
alert(“請(qǐng)求超時(shí)!”);
}
if (status == ‘error’) {
alert(“請(qǐng)求錯(cuò)誤!”);
}
}
});
}
function buynow_do(data)
{
if (data != null && data == “0”) {
alert(“請(qǐng)先登態(tài)橘錄”);
window.location = “/login.aspx”;
}
else {
var gid = $(“#hidgoodsid”).val();
var price = $(“#lablowprice”).val();
var score = $(“#highscore”).val();
var num = $(“#goodsnum”).val();
window.location = “/shoppingcart.aspx?gid=” + gid + “&price=” + price + “&score=” + score + “&num=” + num;
}
}
需要引用JQUERY
highscore 數(shù)據(jù)庫的介紹就聊到這里吧,感謝你花時(shí)間閱讀本站內(nèi)容,更多關(guān)于highscore 數(shù)據(jù)庫,「高分?jǐn)?shù)數(shù)據(jù)庫」 數(shù)據(jù)管理的利器,新托福寫作全觀深度解答18問?,關(guān)于js 怎么調(diào)用MySQL中的數(shù)據(jù)來繪制曲線圖?的信息別忘了在本站進(jìn)行查找喔。
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文章題目:「高分?jǐn)?shù)數(shù)據(jù)庫」數(shù)據(jù)管理的利器(highscore數(shù)據(jù)庫)
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