单词：optically active body
单词：optically active body 相关文章
How and Why We Sleep? It's apparent that everyone needs to sleep.However,most people vary think about how and why they sleep.We know that if we sleep well,we felt rested.If we don't sleep enough,we often felt tired and irritable.It seems there are tw
英语专业四级考试指南
Today's topic is active voice versus passive voice. Here's Brian from Iowa: It drives me crazy when people write in passive voice. How can I teach people how to tell the difference between passive and active voice and stay away from passive voice? Th
英语语法 Grammar Girl
Unit 2 She looks active. [00:02.39]第二单元 她看起来活跃。 [00:04.78]Lesson 7 Just speak [00:07.01]第七课 刚才的谈话 [00:09.25]Who's this? [00:10.83]这个是谁？ [00:12.41]My new friend in the art club. [00:14.29]我在艺术俱乐
人教版小学英语五年级
by Mignon Fogarty Today's topic is active voice versus passive voice. The podcast edition of this article was sponsored by GoToMeeting. With this meeting service, you can hold your meetings over the Internet and give presentations, product demos and
英语语法 Grammar Girl
Muslim Brotherhood Ready for More Active Role in Jordan From VOA Learning English, this is IN THE NEWS in Special English. The Muslim Brotherhood is one of the largest Islamic groups in the Arab world. For years, the Brotherhood has been banned in a
2013年VOA慢速英语(六)月
The top American military officer, Admiral Mike Mullen, has taken a particularly active role in changing the U.S. approach to Afghanistan, contributing to the new strategy, choosing the new commander for U.S. and NATO forces, and deciding to replace
VOA标准英语2009年(六月)
Unit 112：Get out into the cold 第112单元：迎向寒冷 People don't need to hibernate all winter long,although you wouldn't know it from the increase in couch potatoes when the first frost shows up. 人类是不需要冬眠的，不过寒冬初至
减肥瘦身英语口语话题
SCIENCE IN THE NEWS - Successes Against Tuberculosis, But Not Everywhere By George Grow Broadcast: Tuesday, July 19, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob
科技之光
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. Im Barbara Klein. VOICE TWO: And Im Steve Ember. On our program this week, we tell about the disease tuberculosis. Tuberculosis can be deadly if not treated the right way. It is a serous
VOA慢速英语2007年（四）月
Iranian President Mahmoud Ahmadinejad's visit to Istanbul last week is seen as part of Ankara's increasingly active role in the Middle East, after decades of passivity in the region. At the same time, some analysts say, Turkey's ties to the West are
VOA标准英语2008年（八月）
World Health Day Focuses On 'Active Aging' Shelby Harris just celebrated his 111th birthday. His secret? I try to live the right kind of life, he said. I try to live the truth, I love everybody and I want everybody to love me. Some experts say a posi
VOA标准英语2012年(四月)
Active MRI Shows How Joints Work 活动核磁共振成像显示身体关节如何运作 Since its introduction in the 1980s, magnetic resonance imaging machines, commonly known as MRI scanners, have become a highly valuable tool in diagnostic medicin
VOA标准英语2014年(三月)
All seniors 55 and older are invited to a special meeting next Tuesday in the Senior Center. The meeting will begin with cookies and lemonade. The speaker will be James Carter, the director of a nonprofit organization dedicated to making the golden y
365个英语简短小故事
LONDON, July 4 (Xinhua) -- Anders Fogh Rasmussen, Secretary General of the North Atlantic Treaty Organization (NATO) expressed his hope on Wednesday that NATO would seek a more active dialogue with China. We must expand the range of nations with whom
英语新闻
SEOUL, Nov. 8 (Xinhua) -- Samsung Electronics, the world's largest flat screen TV vendor, said Tuesday that it has suspended its plan to develop active shutter three-dimensional (3D) TVs with RealD, the U.S.-based 3D technology supplier. Samsung has
英语新闻
SCIENCE IN THE NEWS -July 9, 2002: Tuberculosis By Oliver Chanler VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember with Science in the News, a VOA Special English program about recen
科技之光
今天我们要学的词是active duty。 Active duty, 现役的。星期一是美国阵亡将士纪念日。 My friend Jack is an active duty Army Captain who has deployed overseas three times, 我朋友杰克是现役陆军上尉，先后三次被派
英语每日一词
How to live a healthy lifestyle Healthy lifestyle is so crucial to our lives that if we do not live healthy, everything else in life loses its importance. We may have many expensive things at our disposal, but if we have unhealthy lifestyle, we may n
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今天我们要学的词是active duty。 Active duty, 现役的。星期一是美国阵亡将士纪念日。 My friend Jack is an active duty Army Captain who has deployed overseas three times, 我朋友杰克是现役陆军上尉，先后三次被派
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