un. 自花传粉
[网络] 自花授粉；自我授粉；自花受精

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TEST 1 [00:06.30]Listen carefully to the conversations and short passages [00:11.76]and choose the best answer to each of the questions. [00:16.72]1.M:Could you please tell me what room Robert Davis is in? [00:22.78]W:Yes,he's in the intensive care u

发表于:2018-12-01 / 阅读(443) / 评论(0)

大学六级听力模拟题

晨读英语美文60篇六级08

The 50-Percent Theory of Life I believe in the 50-percent theory. Half the time things are better than normal; the other half, they are worse. I believe life is a pendulum swing. It takes time and experience to understand what normal is, and that giv

发表于:2018-12-07 / 阅读(243) / 评论(0)

晨读英语美文60篇

VOA慢速英语20060103a

AGRICULTURE REPORT - The Business of Bees and Beekeeping (Part 3 of 3)By Mario Ritter Broadcast: Tuesday, January 03, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Bees not onl

发表于:2018-12-17 / 阅读(229) / 评论(0)

2006年慢速英语（一）月

SSS 2011-08-29

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Many scientists draw their concepts.For example, if we look at the work of somebody like Maxwell or Faradywe know they drew as part of their inventing

发表于:2018-12-24 / 阅读(296) / 评论(0)

Scientific American(八)月

大学英语六级听力模拟题 te1

[00:06.30]Listen carefully to the conversations and short passages [00:11.76]and choose the best answer to each of the questions. [00:16.72]1.A)At a gas station. B)At a bank. C)At a hospital. D)At a school. [00:41.87]2.(A)She wants to win the race. (

发表于:2018-12-30 / 阅读(255) / 评论(0)

英语六级听力练习集锦

2007-12-20, African Dawn

Thorntree country is like a vast city on the plains. It is crowded with residents looking for food, accommodation and social contact. In a comfort to the canopy, there is a new incentive to get up this morning. The tallest umbrella thorntrees are bu

发表于:2018-12-30 / 阅读(363) / 评论(0)

国家地理2007年

经济学人:授粉:为何雄蜂很差劲?(1)

Science and Technology 科技 Pollination: Why the bees sucks? 授粉：为何雄蜂很差劲？ Plans for artificial pollinators are afoot. 人造授粉者计划蓄势待发 It is, in one way, the ultimate drone. 人造雄蜂堪称终极的飞行利器

发表于:2018-12-30 / 阅读(258) / 评论(0)

经济学人科技系列

经济学人:授粉:为何雄蜂很差劲?(2)

It is a modified version of a commercially available robot quadcopter, 42mm across. (By comparison, a honeybee worker is about 15mm long.) 它就是市面上可以见到的那种四轴飞行器，只不过经过了改装，全长仅为42mm（相比之下

发表于:2018-12-30 / 阅读(273) / 评论(0)

经济学人科技系列

VOA慢速英语20061128a

AGRICULTURE REPORT - Genetic Map Could Point Way to an Improved Honey BeeBy Jerilyn Watson Broadcast: Tuesday, November 28, 2006 This is the VOA Special English Agriculture Report. Scientists now have

发表于:2019-01-02 / 阅读(286) / 评论(0)

2006年慢速英语(十一)月

VOA慢速英语20060725a

AGRICULTURE REPORT - Rains Help Ease Crop Worries in U.S. Corn BeltBy Brianna Blake Broadcast: Tuesday, July 25, 2006 This is the VOA Special English Agriculture Report. America's leading food crop is

发表于:2019-01-02 / 阅读(262) / 评论(0)

2006年慢速英语（七）月

VOA慢速英语 2008 0513a

Agriculture Report - Honey Bee Losses Still a Problem in US Beekeepers reported losing about 35 percent of their hives in the fall and winter of last year. Transcript of radio broadcast: 12 May 2008 This is the VOA Special English Agriculture Report

发表于:2019-01-11 / 阅读(450) / 评论(0)

VOA慢速英语2008年（五）月

VOA慢速英语 2007 0410a

This is the VOA Special English Agriculture Report. What has happened to America's honeybees? Last fall, beekeepers from states with warm climates began to report a sudden loss of honey bees. Losses were reported in twenty-four states and into Canad

发表于:2019-01-11 / 阅读(307) / 评论(0)

VOA慢速英语2007年（四）月

VOA慢速英语 2007 0918a

This is the VOA Special English Agriculture Report. American beekeeping operations have been hit hard by what scientists call colony collapse disorder. Almost half of their worker bees have disappeared during the past season. C.C.D. has also been re

发表于:2019-01-11 / 阅读(311) / 评论(0)

VOA慢速英语2007年（九）月

精美英文欣赏:The 50-Percent Theory of Life 生活理论半

回首那个糟糕的夏天，我很快就明白了，所有后来出现的好事只不过与坏事相互抵消。比一般情况糟糕的境遇不会延宕过久；而太平时光是我应得的，我要尽情享受，它们为我注入活力以应对

发表于:2019-01-30 / 阅读(386) / 评论(0)

精美英文欣赏

AGRICULTURE REPORT - The Buzz About Bees

AGRICULTURE REPORT - The Buzz About Bees By Mario Ritter Broadcast: Tuesday, May 31, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. More than ninety kinds of fruits, vegetables,

发表于:2019-01-30 / 阅读(312) / 评论(0)

农业与发展

Fifty-percent Expectation 50%的希望

Fifty-percent Expectation 50%的希望 I believe in the 50-percent theory. Half the time things are better than normal; the other half, they are worse. I believe life is a pendulum swing. It takes time and experience to understand what normal is, and

发表于:2019-02-07 / 阅读(344) / 评论(0)

阅读空间

双语新闻：世界最高塔迪拜塔落成

I believe in the 50-percent theory. Half the time things are better than normal; the other half, they are worse. I believe life is a pendulum swing. It takes time and experience to understand what normal is, and that gives me the perspective to deal

发表于:2019-02-09 / 阅读(226) / 评论(0)

实用英语

我的座右铭：生活半对半

The 50-Percent Theory of LifeI believe in the 50-percent theory. Half the time things are better than normal; the other half, they are worse. I believe life is a pendulum swing. It takes time and experience to understand what normal is, and that give

发表于:2019-02-09 / 阅读(336) / 评论(0)

英语美文

“回到未来”日：专家预测2045年的生活

《回到未来2》上映于1989年，片中主角从1985年穿越到了2015，演绎了对2015年的一系列怪异预测。 Although several of the film's predictions, like video calls and wearable technology, came true, Back to the Future II showe

发表于:2019-02-13 / 阅读(301) / 评论(0)

阅读空间

【英语语言学习】愤怒的蜜蜂

RACHEL MARTIN, HOST: Every year, millions of commercial honey bees hit the road headed to farms around the country to pollinate crops. Occasionally, there are mishaps like the one that took place this past week in Delaware when a tractor-trailer carr

发表于:2019-02-16 / 阅读(286) / 评论(0)

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