(calcite 的复数) n. 方解石
[化] 方解石

plural of calcite
n. a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone

SSS 2008-08-20

This is Scientific Americans Sixty Seconds Science. Im Steve Mirsky. Got a minute? Youve no doubt heard that grapefruit juice can greatly increase the effects of some drugs. Even to a dangerous degree. Pharmacologist David Bailey made that discovery

发表于:2018-12-24 / 阅读(181) / 评论(0)

Scientific American(八)月

减肥瘦身英语口语话题第123期:开辟一座花园

Unit 123：Plant a garden 第123单元：开辟一座花园 Use up 400 to 450 calories an hour and have a beautiful garden as well. 在你拥有一座美丽花园的同时，你也会在一小时里消耗掉四百到四百五十卡路里的热量。

发表于:2018-12-26 / 阅读(146) / 评论(0)

减肥瘦身英语口语话题

【话匣子英语】采访艾米丽

今天来做客的嘉宾是艾米丽，艾米丽从事的工作是与医疗卫生有关的。 Maura: Now todays episode is a Chatterbox episode, and that is where we chat about all different kinds of topics and sometimes we also interview people. And

发表于:2018-12-27 / 阅读(155) / 评论(0)

话匣子英语

新标准初中英语九年级(下):UNIT1 Chemical experiment

[00:02.99]3 Listen and order. [00:07.30]You will hear Miss Wang give instructions on [00:10.67]how to use a Bunsen burner. [00:14.04]Listen to the instructions [00:15.94]and number the pictures in the correct order. [00:20.12]Number the steps 1-8. [0

发表于:2018-12-29 / 阅读(310) / 评论(0)

外研社新标准初中英语九年级

灵活运用GRE写作核心句型写出高分作文

在GRE作文中，适当的地方出现一些GRE写作核心句型，是自己的GRE作文更加富有竞争力。对于写GRE作文已经有自己的一套想法，也具备了很强的基础知识，那再加上一些核心句型的应用，那不愁

发表于:2019-01-03 / 阅读(196) / 评论(0)

GRE英语

2005年NPR美国国家公共电台八月-Chinese Firm Out of Running for Unocal

The Chinese offshore oil corporation known as CNOOC has abandoned its bid for UNOCAL. This would have been the largest-ever purchase of an American company by a Chinese firm. CNOOC had put forth a bid that was higher than the competing bid from US o

发表于:2019-01-08 / 阅读(281) / 评论(0)

2005年NPR美国国家公共电台

天籁音乐:Anthony Callea-Rain

来自澳大利亚墨尔本年仅21岁的Anthony Callea参加了2004年第二届澳洲偶像大赛(AUSTRALIAN IDOL).从4月份试音开始,他便受到了歌迷与裁判的一直好评,成为当年大赛的最大热门.尽管最后惜败于16岁的Ca

发表于:2019-01-10 / 阅读(179) / 评论(0)

天籁音乐

Wildlife Convention Protects Animals Great and Small

AS IT IS 2016-10-06 Wildlife Convention Protects Animals Great and Small Delegates from around the world met this week in Johannesburg, South Africa to discuss how to stop the trade in endangered animals. Representatives from 183 countries attended t

发表于:2019-01-12 / 阅读(143) / 评论(0)

2016年VOA慢速英语(十)月

亚马逊客户因退货太多被列入黑名单

AS IT IS 2016-03-28 Amazon Customer Banned for Too Many Returns 亚马逊客户因退货太多被列入黑名单 Tuan Do of New York says Amazon has banned him from shopping on that website. The reason? He returned too many Amazon purchases, he said

发表于:2019-01-12 / 阅读(167) / 评论(0)

2016年VOA慢速英语(三)月

联邦救助帮助纽约负担不起食物的工薪阶层

联邦救助帮助纽约负担不起食物的工薪阶层 It is Christmas time at the South Bronx apartment of Jose and Oleyda Gutierrez. 在布朗克斯南部公寓中生活的约瑟和奥莱德娅古特雷兹现在已经迎来了圣诞。 Their spi

发表于:2019-01-14 / 阅读(193) / 评论(0)

VOA标准英语2016年(二月)

历史上的今天-Today in History 2011-05-11

May 11th, 1973. Charges are dropped against Daniel Ellsberg for leaking the Pentagon Papers during the Vietnam War. A judge cites government misconduct by officials in President Richard Nixons White House, illegal wiretaps on Ellsbergs phone and a br

发表于:2019-01-19 / 阅读(153) / 评论(0)

历史上的今天-2011年

历史上的今天-Today in History 2013-05-11

发表于:2019-01-19 / 阅读(167) / 评论(0)

历史上的今天-2013年

历史上的今天-Today in History 2015-05-11

发表于:2019-01-19 / 阅读(142) / 评论(0)

历史上的今天-2015年

【英语语言学习】鲨鱼

This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. And I'm Doug Johnson. On our program this week, we tell about sharks. They are among the oldest animals on Earth. Sharks are famous for attacking other sea creatures and even peop

发表于:2019-01-24 / 阅读(177) / 评论(0)

英语语言学习

SCIENCE IN THE NEWS - All About Sharks

SCIENCE IN THE NEWS - All About Sharks By George Grow Broadcast: Tuesday, July 05, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Dou

发表于:2019-01-30 / 阅读(184) / 评论(0)

科技之光

Fiscal policies key to growth: Vice Premier

SHANGHAI, Feb. 17 (Xinhua) -- Vice Premier Li Keqiang has urged local governments to improve and implement structural tax-reduction polices, while pushing forward fiscal and tax reforms to help stabilize growth. Li made the remarks at two meetings he

发表于:2019-02-07 / 阅读(244) / 评论(0)

英语新闻

音乐咖啡厅:Anthony Callea - Rain

音乐咖啡厅:Anthony Callea - Rain 相关介绍：来自澳大利亚墨尔本年仅21岁的Anthony Callea参加了2004年第二届澳洲偶像大赛(AUSTRALIAN IDOL).从4月份试音开始,他便受到了歌迷与裁判的一直好评,成为当年大

发表于:2019-02-07 / 阅读(231) / 评论(0)

音乐咖啡厅

GRE argument写作核心句型分享

第一段：开头段。主要是归纳论点，说明论点有问题，存在逻辑漏洞，准备发起进攻第一层： This argument concludes/recommends/argues that 第二层： To support this conclusion the writer cites/points out that 第三层

发表于:2019-02-09 / 阅读(130) / 评论(0)

GRE作文

趣味青春英语电台第274期:Rainy day

Idiom: Rainy day ( situation of emergency ) Hit the book: Cite Frequent flyer Seat allocation Identity theft Bin Discard Stub Formulate Facilitate Krebs cites a reader, Cory, who contacted his website after discovering how easy it was to access someo

发表于:2019-02-16 / 阅读(179) / 评论(0)

趣味青春英语

音乐咖啡厅:Anthony Callea - Take It To The Heart

音乐咖啡厅:Anthony Callea - Take It To The Heart 相关介绍：来自澳大利亚墨尔本年仅21岁的Anthony Callea参加了2004年第二届澳洲偶像大赛(AUSTRALIAN IDOL).从4月份试音开始,他便受到了歌迷与裁判的一直好评

发表于:2019-02-19 / 阅读(213) / 评论(0)

音乐咖啡厅

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

characteristic hyperplane

chromatographic function

clock extraction