单词：plant tissue culture
单词：plant tissue culture 相关文章
This is the VOA Special English Agriculture Report. Even in ancient times, people liked to eat lettuce. Egyptians and Romans served the green, leafy vegetable at the end of dinner. Now, people in some countries start the meal with lettuce as part of
VOA慢速英语2009年（四）月
00:05.00]5 有用的东西 [00:10.00]A What things do Mary and Peter need to lay the tables? [00:16.78]Mary和Peter要摆什么在桌子上？ [00:23.56]Mary needs some knives and forks. [00:27.83]Mary要摆一些刀子和叉子。 [00:32.10]She also needs some plates. [00:3
小学英语深圳双语版六年级
[ti:UNIT 2 Plant a Plant! Lesson 12: Pretty Little Plant] [0:00.241]UNIT 2 第二单元 [0:01.877]Plant a Plant! 培育植物 [0:03.754]Lesson 12: 第12课： [0:05.391]Pretty Little Plant 漂亮的小植物 [0:08.856]You need two groups to sing this
河北教育初中英语（初中起点）八年级下册
[ti:UNIT 2 Plant a Plant! Lesson 10: Plant Parts] [0:00.363]UNIT 2 第二单元 [0:02.105]Plant a Plant! 培育植物 [0:03.775]Lesson 10: 第10课： [0:05.444]Plant Parts 植物的组成部分 [0:07.100]THINK ABOUT IT! 想一想 [0:08.539]How many
河北教育初中英语（初中起点）八年级下册
[ti:UNIT 2 Plant a Plant! Lesson 9: How Does a Plant Grow?] [0:00.532]UNIT 2 第二单元 [0:01.935]Lessons 9～16 第9~16课 [0:04.780]Plant a Plant! 培育植物！ [0:06.829]You Will Learn 你将学到 [0:09.105]Functions 实际应用 [0:10.888]Ta
河北教育初中英语（初中起点）八年级下册
[ti:UNIT 2 Plant a Plant! Lesson 11: Look after Your Plant!] [0:00.243]UNIT 2 第二单元 [0:02.058]Plant a Plant! 培育植物 [0:03.833]Lesson 11: 第11课： [0:05.326]Look after Your Plant! 照顾你的植物！ [0:08.070]Has your seed sprouted?
河北教育初中英语（初中起点）八年级下册
This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Scientists have worked for twelve years to develop what they call Green Super Rice. They say several varieties should be available to farmers about t
2011年VOA慢速英语(二)月
When humans have a heart attack, heart muscles die after being cut off from their blood supply. But what if the heart could grow new muscle to replace the dead tissue? Some amphibians can regrow body parts, even entire limbs. But humans and other hig
VOA标准英语2011年(三月)
Because many of you have responded positively to my new series 'Analysis time', we will continue with a particularly interesting one today taken from an article about 'break-through' scientific technology. If you haven't come across the phrase 'break
英语博客 A cup of English
This is the VOA Special English Agriculture Report. Today we talk about tomatoes. Tomatoes are generally easy to grow. Experts at the University of Illinois Extension suggest you start seeds indoors if the ground is still cold. For best results with
VOA慢速英语2009年（三）月
This is the VOA Special English Agriculture Report. True or false? Potatoes are root vegetables. False. Potatoes are underground stems called tubers. Most kinds of potatoes can be planted during cool weather. But John Masiunas of the University of I
VOA慢速英语2009年（三）月
This is the VOA Special English Agriculture Report. Tulips at the Public Gardens in Boston, Massachusetts (file photo) We have a question from a Chinese student who is interested in floriculture. Wang Yue wants to know what kinds of flowers American
VOA慢速英语2009年（二）月
This the VOA Special English Agriculture Report. Parsley is an ancient green and a respected addition to many foods. But other times, its job is just to make a mealtime plate look pretty. Poor parsley, valued for its looks, then thrown away. Yet par
VOA慢速英语2009年（六）月
Agriculture Report - Getting a Firm Grip on Weed Control 农业报道 - 严格控制杂草 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 When is a plant considered a weed? Experts at Penn State U
2012年VOA慢速英语(六)月
Agriculture Report - Really, It's OK to Pinch Mums 农业报道 - 如何种植菊花 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 People have been growing chrysanthemums for more than two thousa
2012年VOA慢速英语(二)月
Agriculture Report - Hot in the Garden: Too Much Sun Can Harm Vegetables 农业报道 - 过多日照会对植物造成损害 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Last week we discussed h
2011年VOA慢速英语(八)月
Scientists Regrow Tissue Killed During Heart Attack U.S. scientists have done what was once considered science fiction - regrown heart muscle to replace tissue that was killed off in a heart attack. It's the latest advance in the field of regenerativ
VOA标准英语2012年(二月)
Researchers have identified a link between dementia and the brain damage that can occur in older people with high blood pressure and other forms of cardiovascular disease. High blood pressure, high cholesterol, and other conditions that affect blood
VOA标准英语2010年(十一)月
Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o
60秒科学
Jack and the Bean Plant I Once there was a poor woman. She had one son, whose name was Jack. Jack had no father; a giant had killed him. Jack's mother had one cow, whose milk they sold. They had no money but the money which they got for the milk. One
趣味英语