被混杂后的常态分配, 有瑕疵常态分布；有瑕疵常态分配

舌尖上的中国第1季第9期:自然的馈赠-莲藕(1)

It needs patience and skill to dig up a complete lotus root. 挖藕要有耐心和技巧才能取出完整的一段藕。 Locate it first and figure out its length, and then clear away the silt around it, bit by bit. 摸清楚整根藕的走势和长度

发表于:2018-12-04 / 阅读(173) / 评论(0)

舌尖上的中国第一季

CNN 2011-06-04

The start of new month, the start of new day. CNN student news. Hi, I'm Carl Azuz and I'm delivering you ten minutes of commercial free headlines. First up, we are talking about a new low for the price of homes in the United States during the first q

发表于:2018-12-20 / 阅读(176) / 评论(0)

CNN2011年(六)月

CNN 2011-10-08

First up today, a man from Massachusetts is charged with plotting an attack on Washington D.C.. One official says Rezwan Ferdaus was never really a threat, but he was the target of the undercover FBI investigation. Law enforcement officers has been i

发表于:2018-12-20 / 阅读(155) / 评论(0)

CNN2011年(十)月

中国的空气污染

Rob: Hello I'm Rob. Welcome to 6 Minute English. I'm joined today by Finn. Hello Finn. Finn: Hello Rob. Rob: In this programme we're talking about a serious problem that has been affecting some of the big cities in China: that's air pollution. Finn:

发表于:2019-01-07 / 阅读(158) / 评论(0)

六分钟英语

国际贸易英语词汇集锦

All Risks 一切险 F.P.A. (Free from Particular Average) 平安险 W.A. / W.P.A (With Average or With Particular Average) 水渍险 War Risk 战争险 F.W.R.D. (Fresh Water Rain Damage) 淡水雨淋险 Risk of Intermixture and Contamination 混杂、玷

发表于:2019-01-11 / 阅读(134) / 评论(0)

实用英语

高频英语口语对话第497期:询问汽油价格

unit 554 询问汽油价格 dialogue 英语情景对话 A:Hi. Do you want a fill-up? A:你好。你要把油箱加满吗？ B:Yes,please. B:是的，请加满。 A:Which type of gas do you want? Regular, Super,or Premium Unleaded? A:你要加哪种汽油

发表于:2019-01-21 / 阅读(372) / 评论(0)

高频英语口语对话

【一起听英语】中国的空气污染

中国的空气污染有多严重，空气污染会给人的身心健康带来哪些危害？ Rob: Hello I'm Rob. Welcome to 6 Minute English. I'm joined today by Finn. Hello Finn. Finn: Hello Rob. Rob: In this programme we're talking about a serious

发表于:2019-01-23 / 阅读(143) / 评论(0)

一起听英语

如果福岛的冰崖解冻会怎样?看看日本实验的风险

JEFFREY BROWN: And we check in again with two people who've helped us keep up with the continuing crisis. Arjun Makhijani is an engineer special -- engineer specializing in nuclear fusion. He's the president of the Institute for Energy and Environmen

发表于:2019-01-27 / 阅读(168) / 评论(0)

PBS访谈环境系列

新西兰英语 58 Contaminated Baby Milk Powder in China

New Zealand discovered this weekend that a milk powder factory in China, partly owned by the New Zealand dairy company Fonterra, has been selling contaminated baby formula. One baby has died and more than 400 are suffering from kidney problems. Fonte

发表于:2019-01-27 / 阅读(160) / 评论(0)

新西兰英语

每日一词【793】contaminated：污染的

今天我们要学的词是contaminated。 Contaminated污染的。A California meat company recalled about 3500 pounds of hamburger patties that may be contaminated with E. Coli. 加利福尼亚州的一个肉类产品加工厂宣布回收大约3500磅

发表于:2019-02-03 / 阅读(153) / 评论(0)

英语每日一词

学个词Learn a Word 第793期 Contaminated

发表于:2019-02-03 / 阅读(144) / 评论(0)

英语单词荟萃

China unveils reform guidelines on income distribution

BEIJING, Feb. 5 (Xinhua) -- China on Tuesday unveiled reform guidelines on income distribution amid growing public concerns over a widening wealth gap. The guidelines encourage further work to improve the initial distribution system and stepped-up ef

发表于:2019-02-03 / 阅读(190) / 评论(0)

英语新闻

VOA标准英语2010年-Haiti Tent City Residents Cope With Sh

The men take everything, but the women -- nothing -- Camp resident Rosemonde Desmesier Residents of makeshift tent cities throughout Port-au-Prince say that conditions have improved since the earthquake three weeks ago, but shortages of food and reli

发表于:2019-02-03 / 阅读(214) / 评论(0)

VOA标准英语2010年(二月)

VOA标准英语2010年-Bill Clinton Visits Haiti as Relief Ef

Former U.S. President Bill Clinton, the United Nations special envoy to Haiti, is visiting that earthquake-ravaged country, where relief efforts are gaining momentum as tens of thousands of survivors await food, water and other basic necessities. In

发表于:2019-02-03 / 阅读(185) / 评论(0)

VOA标准英语2010年(一月)

2007年VOA标准英语-UN: Difficulty of Aid Distribution in Peru Easi

By Lisa Schlein Geneva 21 August 2007 United Nations aid agencies say the distribution of humanitarian assistance to victims of Peru's devastating earthquake remains problematic. But they say the situation is beginning to ease. Lisa Schlein reports f

发表于:2019-02-03 / 阅读(268) / 评论(0)

2007年VOA标准英语（八月）

Are you a normal person？

Are you a normal person？你是正常人吗？ During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe

发表于:2019-02-06 / 阅读(208) / 评论(0)

趣味英语

Europe on alert over tainted cucumber scare

BRUSSELS, May 31 (Xinhua) -- A deadly outbreak of E.coli linked to contaminated cucumbers is sending Europe on high alert, as death toll from the disease climbed to 16 till Tuesday. So far, 15 people have reportedly died and more than 300 were seriou

发表于:2019-02-07 / 阅读(196) / 评论(0)

英语新闻

China to boost distribution industry

BEIJING, July 11 (Xinhua) -- The State Council, or China's Cabinet, announced on Wednesday that it will boost the development of the nation's distribution industry with the goal of establishing a modern goods distribution system that is efficient, co

发表于:2019-02-08 / 阅读(209) / 评论(0)

英语新闻

China steps up probe into contaminated drug capsules

BEIJING, April 21 (Xinhua) -- More inspection teams have been sent to investigate the incident of contaminated drug capsules and find out those held responsible, said the State Food and Drug Administration (SFDA) Saturday. Inspection teams from sever

发表于:2019-02-17 / 阅读(197) / 评论(0)

英语新闻

Nuclear-Contaminated Beef Scare Spreads in Japan

A scare in Japan over beef contaminated with radioactivity spread on Sunday, with more areas of the country reporting tainted meat. Japanese media say meat from 132 cattle that ate straw contaminated with extremely high levels of radioactive cesium h

发表于:2019-02-18 / 阅读(157) / 评论(0)

英语新闻

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