单词：signet-ring cell
单词：signet-ring cell 相关文章
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
VOA2003（下）-环境与健康
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英语会话800句
21.使用手机 常用应急场景 范例一：Vibration mode Di d you hear something? Oh, it is my cell phone ringing. I set it in the vibration mode. It is a good habit to set your cell phone to vibrate. It is very annoying to hear the loud and sudden ring tone
白领口语应急
【Transcript】 Vibration mode A：Did you hear something? B：Oh, it is my cell phone ringing. I set it in the vibration mode. A：It is a good habit to set your cell phone to vibrate. It is very annoying to hear the loud and sudden ring tone in qu
白领快餐口语
[ti:] [ar:] [al:] [by:] [00:01.00] Late At Night, Do You Turn Off Your Cell Phone? 今夜不关机 [00:08.22]Today, my friend asked me a question. [00:11.17]At night, do you turn off your cell phone? [00:14.78]If you dont, whom do you leave it on for
温馨夜读
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
国家地理2008年
Neal's front yard was full of leaves. He went outside and raked the leaves. His cell phone rang. He answered it. Then he continued raking. He raked the leaves into three plastic bags. The recycling truck came by an hour later. The driver threw the ba
简单慢速英语阅读
The girl would turn her cell phone off and put it by her photo on the desk everynight befor going to bed. This habit had been with her ever since she bought the phone. The girl had a very close boyfriend,when they couldn't meet ,They would either cal
每天一点英文
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
2007年VOA标准英语（九月）
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
VOA标准英语2008年（五月）
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
2007年VOA常速英语（十月）
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
VOA常速英语2008年（四月）
I got two tickets to a show at the last minute and I tried to find someone to go with me. First, I called Amanda. The phone rang and rang and then her answering machine picked up. Hi, I'm not in right now. Leave me a message and I'll get back to you
地道美语播客
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
英语新闻
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
趣味英语
This is AP news minute. 1. Inmates at a North Texas lockup broke out of a court-held cell to help save a jailer after they saw the armed guard lost consciousness. The surveillance video showed the inmates running from their cell, calling for help for
美联社新闻一分钟2016(七)月
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
VOA常速英语2007年（十二月）
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
英语新闻
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
阅读空间
how to be a good listener 做个好的倾听者 Put the Cell Phone Down 放下手机 We give our phones too much control over us. We jump any time they ring, beep, or buzz. So, silence your phone. Turn it off or put it in a drawer. Better yet, Stop h
英语听力广播—Listening