单词:post mitotic cell
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By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The
EXPLORATIONS - Wiley Post: The First Pilot to Fly Around the World Alone By Paul Thompson Broadcast: Wednesday, September 14, 2005 ANNOUNCER: Now the VOA Special English program, Explorations. Today S
Mary: Excuse me. Can you tell me the way to the train station, please? Jack: Sure. It's only three blocks down the street. Mary: Is it near the post office? Jack: No. It's next to the fire station. Mar
023 post office Words Post office parcel letter send stamps airmail surface mail registered mail envelop counter philately postman/woman deliver(y) letterbox queue Phrases Send a parcel Seal an envelop Weigh a parcel Check the weight Pay postage Sur
Unit 1 Where's the post office? [00:44.93]SECTION A activity 1b.Listen and circle the places you hear in la. [01:31.95]Activity 2b.Listen and fill in the blanks with the words in the box. [01:40.44]1.The library is ____the video arcade and the superm
For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea
Symbiosis - a mutually beneficial inter-relationship between two organisms, for example between bees and flowers (pollen carrying in return for nectar). Sympathetic nerves - the sympathetic nervous sy
My husband asked me to go to the post office to mail his resume in anticipation of a job interview. He instructed me to send it the fastest way possible. Struck by the urgency in his voice, I grabbed
My teen-age daughter was preparing to return home after having visited her grandparents for a few weeks one summer. Her grandfather gave her 12 post cards .
By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As
A unique array of underwater listening devices stretches 3,000 kilometers along the west coast of North America to track marine life along the continental shelf. It's like giving fish a cell phone, says Pacific Ocean Shelf Tracking (POST) executive d
By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme
By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app
By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte
Listen to the dialogues and fill in T for True, F for False. 英语对话1 A:What kinds of post do you want, first-class post or second-class post? B:First-class please. 英语对话2 A:How do you want your parcel to be delivered, by sea or by air? B
By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia
WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi
Why You Shouldn't Leave Nude Photos of Yourself on Your Cell Phone The 23-year-old woman lost her cell phone in a restaurant parking lot. By the next morning, someone was texting nude photos of her to everyone. As regular readers have learned many ti