单词：aortic valves
单词：aortic valves 相关文章
So how is it, doc? It goes alright? Good. OK. I have my pulse checked coz Jim from Texas says his pulse is fast, really fast and he'd like to know if he should worry about it. Is a fast pulse an indication of anything specific? Well, you'd know the n
访谈录2009
REVIEW THREE For this lesson,you'll need a pencil and a piece of paper. Listen to this lecture about the history of the computer. Don't write anything yet.Just listen The inventor of the modern computer was an English mathematician,Charles Babbage. H
洪恩环境英语
Unit 42 Answer to the Mystery of Life Is Four Scientists have found a simple mathematical relationship that connects the whole nature, from the tiniest cell to the vast forest of the Amazon. The connections are all based on the three dimensions of th
英语流行话题阅读：语境识词4500
And all of the heavy hearts 所有沉重的心 Are broke in their backs 都悄悄地不为人知地伤痕累累 And all of the die-hard valentines 所有顽固的情人 Are calling me back 都在挽回我 You can find me in the restaurant 你会发现我
听歌学英语
Hi, everyone, Im Asieh Namdar at the CNN.com newsroom in Atlanta. Here is a look at whats happening NOW IN THE NEWS. 3.3 million jobs have been cut over the last 6 months. Thats after the latest round of unemployment numbers which show 651,000 peopl
CNN2009年(三)月
Good morning, happy Friday to you from the CNN center in Atlanta, I'm Reggie Aqui. Thanks for checking in. Here is a quick look at what's happening IN THE NEWS. The Labor Department is reporting the nation's unemployment rate has now hit 8. 1%. That
CNN2009年(三)月
BP is close to putting a new cap on the damaged well that's been spewing millions of gallons of oil into the Gulf since April's rig explosion. NPR's Richard Harris tells us the new cap has valves that might be able to stop the flow. The new cap could
2010年NPR美国国家公共电台7月
Russia and Ukraine have resumed the flow of natural gas to Europe, ending a mid-winter standoff that left millions of consumers on the continent without heat or power during 13 days of bitter cold. An official at a metering station owned by Russia's
VOA标准英语2009年(一月)
Chapter 13 End of Summer 第十三章 夏天的尾声 A trumpet has three little valves. They are for the fingers of the player. 一把小号有三个小活瓣。它们是让吹奏者用手指来按的。它们看起来就像这样： By pushing them
吹小号的天鹅
本期内容： Arnold Schwarzenegger has undergone heart surgery in Los Angeles. The Austrian-American film star and former California governor, 70, had a scheduled procedure to replace a valve at Cedars-Sinai hospital on Thursday. The device was in
夏说英语新闻晨读
1. A dozen private boats have taken over in the search off the Florida coast for any sign of two missing NFL players and a friend. The Coast Guard called off its search for the men. But crews gathered Wednesday to retrieve their overturned fishing b
美联社新闻一分钟2009年(三)月
1. Secretary of State Hillary Rodham Clinton says President Barack Obama will head to Turkey in the next month or so to discuss plans to withdraw troops from Iraq. The trip to the Muslim nation would be one of the first foreign visits in Obama's pre
美联社新闻一分钟2009年(三)月
University of Washington doctors are seen here doing heart surgeries using catheters. These long tubes reaching into the heart allow doctors to perform non-invasive heart surgery. Doctor Mark Reisman is better at it now when he gets to practice by us
VOA标准英语2019年(二月)