生物因素

biotic factor的用法和样例：

例句

Herbivory and the interaction with epiphytes are the most important biotic factors affecting the biomass and production of seagrasses.非生物因素一般有最适合海草生长的范围，生物因素的影响具有两面性。
The uptake of dissolved metals, a potentially significant source for overall metal accumulation in bivalves, is liable to be influenced by biotic and abiotic factors.摘要对溶解态重金属的吸收是贝类累积重金属的重要来源之一，易受到生物因素和非生物因素的影响。

TOP GUNS

In Top Guns, we check out four of the best bits of 1) kit. This time 2) assault rifles, that essential battle field companion. Take out targets Singapore-style with the SAR21. The SA80 is the British

发表于:2018-11-28 / 阅读(484) / 评论(0)

疯狂英语2002年

2007年VOA标准英语-Antibiotic Resistance Fast-Growing Problem Worl

By Carol Pearson Washington 28 February 2007 watch Antibiotic Resistance report Penicillin and Erythromycin are examples of antibiotics that used to be one-time miracle cures. These drugs and other antibiotics are now less effective because bacteria

发表于:2018-12-16 / 阅读(277) / 评论(0)

2007年VOA标准英语（二月）

美国国家公共电台 NPR Probiotics For Babies And Kids? New Research Explores Good Bacteria

STEVE INSKEEP, HOST: This year Americans will spend more than $2 billion on probiotics, supplements aimed at boosting what are called good bacteria inside us. One part of the market that's growing rapidly is probiotics for babies and kids. Here's NPR

发表于:2018-12-17 / 阅读(412) / 评论(0)

2018年NPR美国国家公共电台5月

听基础单词,练听力第19期:诚实是判断一个人的

【Transcript】 Tina: Hi! Emma, long time no see. How was your life in England? Emma: Is you, Tina! Im glad to see you. I was back to China a few days ago. I had a great time in my study in England. It is a beautiful country and the people there

发表于:2018-12-30 / 阅读(335) / 评论(0)

听基础单词练听力

60秒科学:Do Rainforests Create Rain?

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(318) / 评论(0)

60秒科学

SSS 2009-05-07

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(291) / 评论(0)

Scientific American(五)月

上当的各种地道口语说法

日常生活中每个人都不可避免要买很多东西，但有些人擅长买到价廉物美的满意物品，而有些人就总是受骗上当。你是哪一类买主呢？ 1. Mary was done brown! 玛丽上当了！ 2. He was dumped on。他上当

发表于:2019-01-08 / 阅读(286) / 评论(0)

英语日常口语

VOA标准英语2014--Philippine Caregiver Wins Israel's X-Factor 以色列音乐比赛菲佣夺冠

Philippine Caregiver Wins Israel's X-Factor 以色列音乐比赛菲佣夺冠 WASHINGTON Rose Fostanes, a Philippine caregiver who has worked in Israel for several years, is the first season winner of a popular Israeli television singing contest cal

发表于:2019-01-14 / 阅读(277) / 评论(0)

VOA标准英语2014年(一月)

美国国家公共电台 NPR Probiotic Bacteria Could Protect Newborns From Deadly Infection

ROBERT SIEGEL, HOST: Now some good news, especially for babies around the world. Scientists in the U.S. and India have found an inexpensive treatment for a common infection. It could save hundreds of thousands of newborns each year. The treatment com

发表于:2019-01-16 / 阅读(267) / 评论(0)

2017年NPR美国国家公共电台8月

美国国家公共电台 NPR Could Probiotics Protect Kids From A Downside Of Antibiotics?

RACHEL MARTIN, HOST: Go online, walk through any health store or supermarket, and you'll find all kinds of products being sold as probiotics. They're being promoted for all kinds of things - preventing upset stomachs, boosting the immune system, figh

发表于:2019-01-16 / 阅读(259) / 评论(0)

2017年NPR美国国家公共电台12月

学个词Learn a Word 第665期 WOW factor

今天我们要学的词是WOW factor。 A WOW factor, 指让人惊叹的东西。经济不景气，也影响到了玩具行业。从二月中旬开幕的美国国际玩具展可以看出， In 2009, there will still be toys with the WOW factor, but

发表于:2019-01-30 / 阅读(316) / 评论(0)

英语单词荟萃

VOA常速英语2008年-Biofuels One Factor in Rising Food Prices

By Kent Klein Washington 13 April 2008 Soaring food prices are causing big problems in many parts of the world today. One factor in the ballooning costs may be the increasing global demand for biofuels - vehicle fuels made at least partly from corn (

发表于:2019-01-30 / 阅读(279) / 评论(0)

VOA常速英语2008年（四月）

老友记第一季 22 The One with the Ick Factor

本集简介：瑞秋大做春梦先是和钱德，第二次天梦见和钱德及乔伊（不过大多数时间是后两人在忙乎），第三个梦终于是和罗斯。菲比想做兼差赚钱，所以给钱德当秘书。钱德由此发现同僚们

发表于:2019-01-30 / 阅读(351) / 评论(0)

老友记(六人行)

专家:益生菌酸奶并非有益肠道健康

Probiotic yoghurt drinks and supplements dont live up to their promises, according to an EU watchdog. They claim to boost your immune system and help digestion. It concluded there is no scientific proof that products such as Yakult have any health be

发表于:2019-02-04 / 阅读(254) / 评论(0)

阅读空间

音乐咖啡厅:Hero 冠军单曲-X Factor选手翻唱经典老歌

在这一周的英国单曲榜当中，由英国著名选秀大赛X Factor冲进决赛阶段的选手们合唱的一首公益歌曲《Hero》空降榜首位置。大约15年前，由花蝴蝶玛丽亚凯丽(Mariah Carey 听歌)演唱的原版《Hero》在英国单曲榜中最高曾排在第七位。从英国选秀大赛X Factor走出来的选手，

发表于:2019-02-06 / 阅读(368) / 评论(0)

音乐咖啡厅

英文流行歌曲：X Factor冠军打榜热歌 All Night Long

X Factor冠军打榜热歌：All Night Long Alexandra Burke是第五季X Factor的冠军，也是X Factor的舞台上继Leona Lewis之后第二个女性冠军。Alexandra这首发行于今年5月的新单曲本周打入英国单曲榜前十。 Artist：

发表于:2019-02-11 / 阅读(327) / 评论(0)

经典英文歌曲

英语歌曲：2010 X Factor冠军Matt Cardle新单曲 When We Collide

2010 X Factor冠军Matt Cardle新单曲：When We Collide Matt Cardle，参加第七季X Factor之前只是一个27岁的粉刷匠这身份实在平凡得可以。今年他鼓起勇气参加了第七季X Factor，一举拿下冠军，并发行了自己

发表于:2019-02-20 / 阅读(353) / 评论(0)

经典英文歌曲

英语表述“上当了”

1. Mary was done brown! 玛丽上当了！ 2. He was dumped on. 他上当了。 3. You have been spoofed. 你上当了。 4. Youve really been taken. 你真的上当了。 5. You have fallen into the trap. 你们上当了。 6. We were all fooled by

发表于:2019-02-21 / 阅读(287) / 评论(0)

实用英语

地道英语在线听-Wow factor 叫好率

Jo: This is Real English from BBC Learning English. Im Jo. Jean: And Im Jean. Jo: Today were going to look at words and phrases that have recently become part of the English language. Jean: 在我们的《地道英语》节目当中，我们会带领大家一起来学习和熟

发表于:2019-02-26 / 阅读(634) / 评论(0)

地道英语在线听

X-Factor人气选手Misha B新单Do You Think of Me—带着浓浓的想念

X-Factor人气选手Misha B新单《Do You Think of Me》带着浓浓的想念 X-Factor选手米莎碧被许多人拿来和麻辣鸡做比较，但她的的声音也颇具辨识度。这是她的最新单曲《Do You Think of Me》，表达了对自己

发表于:2019-03-11 / 阅读(451) / 评论(0)

流行英文歌曲

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

-faced

administered price theory

air snap gauge

all-purpose tester

aluminium wire splint