磷酸盐缓冲盐水

If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause

发表于:2018-12-15 / 阅读(253) / 评论(0) 分类 新东方背诵文选

Intensely blue, the waters around Bermuda are warmed by the Gulf Streamone of the world's largest and swiftest oceanic currents. Humpback whales pass through these waters each year, migrating from polar feeding grounds. These waters are also known to

发表于:2018-12-26 / 阅读(152) / 评论(0) 分类 自然百科2010年

A: Hello, Madam. What can we do for you today? 您好,女士。今天我们能为您些做什么吗? B: Hi. I've been sent over from Turner Interiors. They said I need to collect some sort of L/C? Do you have it? 你好。我是Turner内饰公司派

发表于:2018-12-27 / 阅读(159) / 评论(0) 分类 银行英语情景口语

If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the

发表于:2018-12-30 / 阅读(158) / 评论(0) 分类 考研背诵50篇

《财富》杂志是一本由美国人亨利鲁斯创办于1930年,主要刊登经济问题研究文章。现隶属时代华纳集团旗下的时代公司。为全球人熟知的两个杂志运营品牌财富论坛和500强仍然在继续维持着它们在财经领域的话语霸权。杂志本体操作得仍然让人看不出其有任何老态,即便是在前些

发表于:2019-01-02 / 阅读(109) / 评论(0) 分类 国外媒体新闻

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(156) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 Scientific American(四)月

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

发表于:2019-01-08 / 阅读(150) / 评论(0) 分类 英语小短文

The Telescope 望远镜 When do you use a telescope? 你什么时候使用望远镜? A telescope is long and tube sheet. It has lenses inside. 望远镜是长管状的薄片,里面有透镜。 It helps people see things far away. 它帮人们看远处

发表于:2019-01-10 / 阅读(103) / 评论(0) 分类 与美国小学生一起学英文第6册

By Carol Pearson Washington, DC 21 November 2006 watch Breast Implants report The U.S. Food and Drug Administration (FDA) has lifted its 11-year ban on silicone implants. But the decision is not without controversy. Silicone and saline implants The

发表于:2019-01-12 / 阅读(162) / 评论(0) 分类 2006年VOA标准英语(十一月)

Dutch Experiment Shows Farming With Salty Water Possible 荷兰实验表明盐水种植农作物成为可能 One of the many adverse effects of global climate change is the rise of sea levels, which scientists say can increase the salinity level of f

发表于:2019-01-14 / 阅读(119) / 评论(0) 分类 VOA标准英语2014年(十一月)

By Scott Bobb Johannesburg 17 April 2007 Experts say global warming is likely to affect people living in Africa more than on any other continent and warn that African policymakers must begin to prepare for such an event. An international panel of exp

发表于:2019-02-02 / 阅读(188) / 评论(0) 分类 2007年VOA标准英语(四月)

Somalia government policemen guard a street in southern Mogadishu during a raid in which 60 people suspected of creating violence in the capital were arrested (File) French Foreign Legion Training Ugandan Troops for Peacekeeping Mission in Somalia Re

发表于:2019-02-03 / 阅读(131) / 评论(0) 分类 VOA标准英语2010年(二月)

China's father of hybrid rice is planning to expand its production of sea-rice at a newly founded research center in Qingdao, a port city in the eastern province of Shandong, local sources said last Saturday. 据当地知情人士上周六透露,中国

发表于:2019-02-06 / 阅读(158) / 评论(0) 分类 英语新闻

When you experience something new, do you know what happens to your brain? Some of the neurons in your brain build new connections. The brain is rewired, as scientists often put it. Our brains are always changing, in response to new experiences or as

发表于:2019-02-24 / 阅读(134) / 评论(0) 分类 英语听力文摘 English Digest
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