样本估计值的标准误

用mp3背四级单词34

entertain-招待,款待 entertainment -娱乐,文娱节目 enthusiasm -热情,热心 entitle -给...权利,给...资格 entry-参赛的人 environment -环境,周围状况 envy -妒忌,羡慕 equality -相等,相同 equation-方程,等式 equivalent -相等的,等价的 era -时代,纪元 erect -挺直

发表于:2018-11-29 / 阅读(252) / 评论(0)

用mp3背四级单词

2000年1月大学英语四级考试试题及参考答案

Section A Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there wi

发表于:2018-12-04 / 阅读(228) / 评论(0)

大学四级英语考试听力真题

数学英语 41 What are Statistics and Estimators?

by Jason Marshall Sometimes statistics* seems magical. Of course, there isnt really anything magical going onbut the fact that statistical methods can be used to pull useful information out of a hatful of messy data is, at a minimum, remarkable. And,

发表于:2018-12-07 / 阅读(205) / 评论(0)

数学英语

玩转商务英语900句第18期:我愿意遵从这里的规矩

I believe ABC would offer me a standard rate of pay based on my experience and education background. 我相信ABC会有一个同我的经验和教育背景相当的薪资标准。 Could you tell me your salary expectations? 能说一下你期望的薪水

发表于:2018-12-31 / 阅读(166) / 评论(0)

玩转商务英语900句

学个词Learn a Word 第832期 Double standard

今天我们要学的词是double standard。Double standard, 双重标准。美国国会众议院议长佩洛西指责共和党人在医疗保健改革的辩论中使用双重标准, House Speaker Nancy Pelosi accused Republicans of having a double

发表于:2019-01-07 / 阅读(233) / 评论(0)

英语单词荟萃

CNN 2010-06-13

This is bigger than the Super Bowl. This is actually bigger than the Olympics. This is really a big deal for Africa, but its also a big deal for the United States. Because you know they really have something to prove. Much of the world sees them real

发表于:2019-01-08 / 阅读(216) / 评论(0)

CNN2010年(六)月

SSS 2012-06-06

Some dinosaurs were really huge, and now we may have a better way to estimate just how heavy these giants were. Researchers have developed a method to weigh dinosaurs based on laser scans of their skeletons. The study is in the journal Biology Letter

发表于:2019-01-08 / 阅读(282) / 评论(0)

Scientific American(六)月

单词超市第15期 double standard

今天要学的一个词组是：double standard。 Double standard是指双重标准。美国连锁商店沃尔马允许在中国的分店组织工会，却不允许在美国的商店组织工会。媒体报导的标题说：Critics claim double sta

发表于:2019-01-11 / 阅读(284) / 评论(0)

英语单词荟萃

Sample Outline and Essay

Below you will find a sample outline and the essay written from that outline. OUTLINE Paragraph 1 (Introduction) I. Leading sentence: It took me eighteen years to realize what an extraordinary influence my mother has been on my life. II. Summary of m

发表于:2019-01-20 / 阅读(255) / 评论(0)

实用英语

2007年VOA标准英语-India Lowers Estimate of HIV, AIDS Infections

By Steve Herman New Delhi 17 August 2007 India was once thought to have the world's highest number of people with HIV -- the virus that causes AIDS. But the estimate was recently reduced by more than half -- down to 2.5 million from 5.7 million. The

发表于:2019-01-30 / 阅读(249) / 评论(0)

2007年VOA标准英语（八月）

2007年VOA标准英语-Intelligence Estimate Says al-Qaida Intends to

By Gary Thomas Washington 17 July 2007 A new U.S. intelligence estimate says al-Qaida remains determined to mount attacks on major targets in the United States, especially if it can acquire weapons of mass destruction. VOA correspondent Gary Thomas r

发表于:2019-01-30 / 阅读(239) / 评论(0)

2007年VOA标准英语（七月）

外贸英语：品质 Quality(二)

We are responsible to replace the defective ones. 我们保换质量不合格的产品。 It's really something wrong with the quality of this consignment of bicycles. 这批自行车的质量确实有问

发表于:2019-02-01 / 阅读(238) / 评论(0)

实用英语

Olympic Torch passes testing of worst weather

LONDON, April 11 (Xinhua) -- The Olympic Torch has passed rigorous testing to ensure even the worst of Britain's weather will not be able to put it out, the Evening Standard newspaper said Wednesday. Two prototypes withstood 50mph winds, extreme temp

发表于:2019-02-07 / 阅读(195) / 评论(0)

英语新闻

美国研究生入学考试会考到的统计题型

GRE 中容易考到的统计题型主要就有以下七种 1。mode（众数）一堆数中出现频率最高的一个或几个数e.g.modeof1,1,1,2,3,0,0,0,5is1and0 2。range（值域）一堆数中最

发表于:2019-02-07 / 阅读(216) / 评论(0)

英文语法词汇

专业术语-财务英语词汇E13

expectancy of value 预期值 expenditure 支出；开支；费用 expenditure approach 支出计算法；开支计算法 expenditure baseline 开支基线 expenditure commitment 开支承担 expendit

发表于:2019-02-17 / 阅读(184) / 评论(0)

财会英语

China releases standard names of Diaoyu Islands

BEIJING, March 3 (Xinhua) -- China has released standard names and descriptions of the Diaoyu Island and its affiliated isles, according to sources with the State Oceanic Administration. The Diaoyu Island is named as Diaoyu Island, with its Chinese p

发表于:2019-02-18 / 阅读(224) / 评论(0)

英语新闻

描述商品品质的英语口语

商品品质决定交易本质上的价值，因此它是最重要的交易因素之一。贸易上的品质决定方法有：凭样品买卖，凭标准买卖，凭规格买卖等。下面我们来看看品质的表达法。 [品质优良]：quality

发表于:2019-02-18 / 阅读(157) / 评论(0)

实用英语

每日一词【1003】gold standard

今天我们要学的词是gold standard。 Gold standard, 意思是同类事物的最高标准。 The iPhone is the gold standard in the smartphone market, iPhone是智能手机市场上最棒的产品。曾带领加州大学洛杉矶分校十次赢得

发表于:2019-02-18 / 阅读(314) / 评论(0)

英语每日一词

学个词Learn a Word 第1003期 Gold standard

发表于:2019-02-18 / 阅读(254) / 评论(0)

英语单词荟萃

留美老师带你每日说英文第609期:预测死亡的软件

台湾籍旅美老师今天交给我们的句子是： In fact, a recent computer software has been developed that has been shown to estimate how and when you will die with 96% accuracy, based on medical history, lifestyle and many other factors. 事实

发表于:2019-03-02 / 阅读(164) / 评论(0)

留美老师带你每日说英文

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