时[间]频[率]标准

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(207) / 评论(0) 分类 数学英语

Oklahomans Have Long Tradition of Resilience, Perseverance In a rural area of Oklahoma, Todd Mauldin lost his house and truck. I have had three close calls, and this was the third one, and it got me! he said. This kind of pluck and good-humored deter

发表于:2018-12-08 / 阅读(121) / 评论(0) 分类 VOA标准英语2013年(五月)

Lesson 37:The Westhaven Express 开往威斯特海温的快车 Listen to the tape then answer the question below. 听录音,然后回答以下问题。 What was the mistake the author made? We have learnt to expect that trains will be punctual. Afte

发表于:2018-12-08 / 阅读(720) / 评论(0) 分类 新概念英语第三册

Lesson 37 The Olympic Games 奥林匹克运动会 First listen and then answer the question. 听录音,然后回答以下问题。 When was the last time this country hosted the Olympic Games? The Olympic Games will be held in our country in four ye

发表于:2018-12-08 / 阅读(341) / 评论(0) 分类 新概念英语第二册

A:Did you set your clock forward for daylight savings time? B: What? Why do we have to do that? A: Well, at the start of the spring we usually have more daylight in the mornings and less in the afternoon. This is basically due to our position on the

发表于:2018-12-25 / 阅读(132) / 评论(0) 分类 纯正地道美语

1.Airport pick-up 接机 A:Anybody picks you up at the airport? B:My secretary arranged it. I just hope the chauffeur will show up. A:有人去机场接你吗? B:我的秘书安排了,我只是希望司机能到。 2. Book a hotel 订酒店 A: Who booked the hotel for you? B

发表于:2018-12-26 / 阅读(135) / 评论(0) 分类 天天商务口语

Imagine getting on a train at twelve noon and heading out on a four-hour trip to another town. 设想一下:您正乘坐一辆中午12点整出发的火车前往另外一个城市,路途耗费4个小时。 Youd expect to arrive at four oclock in

发表于:2018-12-28 / 阅读(160) / 评论(0) 分类 初学者听力文摘精选

Why Was Greenwich Standard Time Created? Imagine getting on a train at twelve noon and heading out on a four-hour trip to another town. Youd expect to arrive at four oclock in the afternoon, right? But before the last few decades of the 19th century,

发表于:2018-12-31 / 阅读(137) / 评论(0) 分类 英语听力文摘 English Digest

by Mignon Fogarty Many parts of the world are moving from standard time to daylight-saving time (also called summer time) this week, so I thought it would be a good time to talk about the phrase daylight-saving time and time in general. The original

发表于:2019-01-02 / 阅读(170) / 评论(0) 分类 英语语法 Grammar Girl

Grammar Girl here. Many parts of the world are moving from daylight-saving time (also called summer time) to standard time this week, so I thought it would be a good time to talk about the phrase daylight-saving time and time in general. Most usage g

发表于:2019-01-07 / 阅读(170) / 评论(0) 分类 英语语法 Grammar Girl

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(264) / 评论(0) 分类 英语单词荟萃

Economics Report - How Gold Became the Gold Standard for Trade 经济报道 - 黄金是如何成为贸易金本位的? This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 The best example of something

发表于:2019-01-12 / 阅读(210) / 评论(0) 分类 2012年VOA慢速英语(四)月

时差 说起时差大家或许立马会想到: Time difference 但它只能用来描述地理上的时间差异: What's the time difference between New York and Shanghai? 纽约和上海时差多少? 谈到具体的时差,中文里会说快、

发表于:2019-01-17 / 阅读(150) / 评论(0) 分类 美国文化脱口秀

Sub-Standard Electronics Donated to Africa Causing Pile Up of E-Waste The safe disposal of unwanted computers, printers, mobile phones, and other electronics, collectively known as e-waste, is a growing problem across Africa. The world produces more

发表于:2019-02-01 / 阅读(165) / 评论(0) 分类 VOA标准英语2011年(十月)

(97) A: Do you usually buy in large quantities? B: Our standard order is 500cases at a time. A: We can handle an order that size very easily. B: We'll let you know the next time we need to place an or

发表于:2019-02-02 / 阅读(173) / 评论(0) 分类 实用英语

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(198) / 评论(0) 分类 英文语法词汇

有了10年超级签证,美国旅游真方便。今天,听Jenny和Spencer的实用指南。帮你省时、省力、又省钱,避免美国旅行的坑。 关键词: Travel in the States: 去美国旅行 Timezones: 时区 There are 6 timezones

发表于:2019-02-15 / 阅读(141) / 评论(0) 分类 美国文化脱口秀

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(204) / 评论(0) 分类 英语新闻

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(301) / 评论(0) 分类 英语每日一词

S no option offered 无期权出售 S split or stock divided 拆股或股息 S signed 已签字 s second; shilling 秒;第二;先令 SA semi-annual payment 半年支付 SA South Africa 南非 SAA special arbitrage account 特别套作账户 SAB s

发表于:2019-02-26 / 阅读(184) / 评论(0) 分类 实用英语
学英语单词
5-Methoxy-2-tetralone
a necessary house
act contrary to moral
adjustment works expenses
adoreth
Africanises
alarm command
antipredator
Asturias
attention to
Aurignacian
beechum
binomial system
bonvillian
C.Eng.
C12
C4ISR
Cheltenham
clamming up
corystid
court of errors and appeals
custom house certificate
datum water level
desperadoism
disconnecting link
dry shrinkage
economic feasibility
Eiffel, Alexandre Gustave
eleutherodactylous foot
extrapolated boundary
ferrea
field teaching
fluxuss
foretrust
forsett
frequency-shift coding
galvanized stay clamp
garlic-crushers
genus psoraleas
geodetic control
geothermal fluids
Gymnocalycium
hyperluteinization
immunoelectrophoretic
intraperitoneal
Ladyzhenka
land patent
layer-stepping
leck
Londonese
macro body of a definition
Mayhew, Jonathan
MDCS
middle ground
nealite
Newtonian lubricating layer
olfaction
on the booze
Once in Royal David's City
optical acoustic diffraction
Outer Santa Barbara Passage
p-levels
pebble-bed shield
pesteration
Petschekite
phyllosticta melastomatis
polar coordinate in space
primary particle
progress curve
protein cycle
prudent man rule
pumped-storage power plant
Pātgaon
radial admission
rate of firing
red puccoon
Saturn's exploration
sealed hydraulic coupling
setting aside
shock incarceration
space weapon system
special parliamentary procedure
spinal paralyses
stilbenemidine
temporary share or stock fraction
tenance
Thai
the national anthem
trell
turvey
two pyroxene andesite
two-prong claw hook
utility frequency of component
variable chord blade
venae cerebri anterior
wave and tide gauge
Whitney Young
Wikstroemia glabra
wilmers
yankee-doodles
yokota
z-disks