单词：roentgen equivalent mammal
单词：roentgen equivalent mammal 相关文章
interpret escort fill magician magistrate magnet levy retirement proximity maid reconciliation guitar perfume migrant gradient storage malice mammal maneuver manifest deafen foreign abstract maple
用Mp3背六级单词
AZUZ: The U.S. has a national bird, the bald eagle. A national tree, the oak. A national anthem, a National Mall. 阿祖兹：美国的国鸟是秃鹰。国树是橡树。美国还有国歌和美国国家广场。 Lawmakers in Congress are pushing fo
CNN美国有线新闻2016年7月
BOB DOUGHTY: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. FAITH LAPIDUS: And I'm Faith Lapidus. Today, we will tell how technology used in airports may help in the study of disease. We will tell about an idea for improving hea
2010年VOA慢速英语(六)月
The biggest and strongest animal on land is the elephant. The largest and heaviest animal in the sea is the whale. It's also the biggest eater in the world. It eats a ton of food a day. It looks like
赖世雄初级美国英语
AS IT IS 2016-04-30 Bison: America's New National Mammal? 美国最新国家级哺乳动物：美洲野牛 This is Whats Trending Today. 以下是今日新鲜事。 The bald eagle is the only national animal of the United States. 秃鹰是美国唯一的
2016年VOA慢速英语(五)月
Podcast is sponsored from the people of American Chemistry, who provide the plastics, medicines, and innovations that make life modern. Learn more at Americanchemistry.com. This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will
Scientific American(七)月
This is Scientific Americans 60 Second Science, I am Cynthia Graber, this will just take a minute~ Want to suss out the existence of a shy mammal in a tropical jungle? Just check a bloodsucking leech. Scientists estimate that about a quarter of the w
Scientific American(四)月
Some people eat to avoid being bored. Others to avoid doing something theyd rather not, like preparing a podcast. Now a report says we might eat to avoid fungi. Because warm-bloodedness, a condition that requires a lot of calories, may have evolved t
Scientific American(十)月
Idiom: Not bat an eye 不眨眼睛，无动于衷 Hit the book: Perform trick Infiltrate Jab Ban Intrinsic Mammal Coalition Aquarium
趣味青春英语
Bats Arent Blind The expression blind as a bat is not an accurate simile. Studies suggest that bats rely on visual landmarks just like birds do. Unlike birds, bats are mammals. The only mammal in the world that can fly is the bat. Some species of bat
趣谈英语
bark, [bɑ:k] n 树皮（可用于制革或入药）；v 狗吠（cry of a dog）； 【例】The bark can be used as medicine 树皮可以作药材。Dogs always bark at strangers 狗总是对着陌生人叫。 【类】epidermis:mammal＝bark:conif
不择手段背单词
这看起来像是我们的祖先懂得收集有着锋利边缘，可以用来切肉的工具，就好像小孩子们懂得挑选扁平的石头用来打水漂一样。但是未来的考古工作致力于寻找把石头塑造成厨具的工具。相信
60秒科学
改革后的新TOEFL考试难度系数是乎是加大了,但其实在阅读这一块,你会发现时间更充足了.阅读理解部分是新托福（TOEFL）考试重要部分，有3篇学术文章，每篇700字左右，每篇有12-14个问题，做题
托福英语
Theres nothing like a good steak. And our Australopithecus afarensis ancestors apparently felt the same way. Because new discoveries from Ethiopia show that what was likely the species of the famous fossil Lucy used stone tools to butcher meat from b
Scientific American(八)月
Researchers have developed a new computer model that they say helps determine which mammals are headed for extinction as a result of human activity. Earth is undergoing its sixth mass extinction, threatening about a quarter of all mammal species, ac
VOA标准英语2009年(六月)
On Saturday, stormy seas caused a three-meter-long whale to wash ashore on a Guangdong beach. With no equipment and facing a race against time, rescuers pushed the four-ton mammal by hand to deeper waters. After a two-and-a-half-hour struggle that sa
CCTV9英语新闻2014年07月
This is Lesson Twelve. In this lesson,you learned the names of a lot of different animals. Now listen and repeat the name of each animal that you hear. pigeon butterfly fox deer wolf goose fish eagle sheep mouse Some of these animal names have regula
洪恩环境英语
今天我们要学的词是equivalent。 Equivalent, 意思是相当于，等同于。《华盛顿邮报》报道说，9/11恐怖袭击事件以来， In Washington and the surrounding areas, 33 building complexes for top-secret intelligence work are
英语每日一词
今天我们要学的词是equivalent。 Equivalent, 意思是相当于，等同于。《华盛顿邮报》报道说，9/11恐怖袭击事件以来， In Washington and the surrounding areas, 33 building complexes for top-secret intelligence work are
英语单词荟萃
A team of U.S. Navy audiologists conducted a hearing test on a rare beaked whale convalescing at a marine mammal rehabilitation center in the Florida Keys. The mature female whale has been tentatively identified as a Gervais' beaked whale or a Sowerb
英语时差8，16