标签：Prematu 相关文章
By Nancy Steinbach HEALTH REPORT -April 24, 2002: Study of Cousins Who Marry This is the VOA Special English Health Report. Sometimes people who are first cousins get married. Two people are first cou
健康与环境
Study Shows PFCs Can Reduce Vaccine Effectiveness When children are vaccinated their immune systems produce antibodies that protect them from debilitating and potentially deadly childhood infections, such as polio, measles, diphtheria and tetanus. Th
VOA标准英语2012年(二月)
经典情景背诵 Daniel: Im so absorbed in the wildlife sanctury that May has told me about. It is totally different from the ordinary zoo. The visitors cant get off the bus or their own cars unless permitted. And there are a lot of exotic animals
英语大赢家上册
Study Says Pregnant Women Should Get Flu Shot During the 2009 H1N1 influenza pandemic, pregnant women faced a greater risk of life-threatening complications and many were hospitalized. Dr. Michael Katz from the March of Dimes says influenza is a seri
VOA标准英语2012年(八月)
By Deborah Block Ibrahim Khalil, Iraq 30 October 2007 Truck and taxi drivers at the main crossing point of the border between Iraq and Turkey worry it could be closed soon, as the Turkish government threatens a military incursion into northern Iraq.
2007年VOA常速英语（十月）
This is the VOA Special English Education Report. For ten months, we have talking about coming to study in the United States. This week, we complete that series and repeat some of the advice. The goal of all that work: Caps are thrown into the air a
VOA慢速英语2009年（七）月
Study: Heavy Facebook Users Less Happy Students at George Mason University in Virginia were asked how many friends they have on Facebook. Um, Ive never actually stopped and looked at it. Probably somewhere between 350 and 400, responded one student.
VOA标准英语2012年(二月)
U.S. Defense Secretary Robert Gates visited Western Iraq Wednesday, the place where U.S. troops and local tribal leaders began an effort four years ago that helped turn the tide of the Iraq war. Gates stopped in al-Anbar Province on his way to Baghda
VOA标准英语2010年(九)月
US Scientists Expand Scope of HIV Vaccine Study The worlds largest ongoing HIV vaccine study has been expanded to consider multiple ways a vaccine might boost immune response to the AIDS virus. The U.S. Institute of Allergy and Infectious Diseases (N
VOA标准英语2011年(八月)
Study: Immune System Weakens in Space During the final flight of the US space shuttle Atlantis in the summer of 2011, one of the most important pieces of scientific cargo on board was a medical experiment designed to test how the human immune system
VOA标准英语2013年(四月)
SCIENCE IN THE NEWS - July 30, 2002: Study of Centenarians / How Sleep Improves Learning / New York Requires Abortion Training for Some New Doctors VOICE ONE: This is Sarah Long. VOICE TWO: And this i
科技之光
HEALTH REPORT – November 6, 2002: Study Finds Autism Increase in California By Jeri Watson This is the VOA Special English Health Report. Autism is a mysterious and complex brain disorder that begin
健康与环境
By Pat Harris Washington, DC 09 May 2006 watch Virus report Marburg Ebola Virus The Marburg and Ebola viruses have caused fatal outbreaks in Africa for the past four years. A recent study shows a vacc
2006年VOA标准英语（五月）
SCIENCE IN THE NEWS -April 23, 2002: Study of Shipwrecks in Europe / Feathered Dinosaur / Foods That Can Keep You Healthy Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty w
科技之光
By Catherine Maddux Washington 18 January 2006 African leaders gather next week for an African Union summit amid a major setback in the fledgling organization's peacekeeping mission in Sudan's western
2006年VOA标准英语（一月）
The troubled U.S. economy once again took center stage in the presidential election campaign Wednesday. VOA National Correspondent Jim Malone has more on the race for the White House. Traders crowd post that handles Morgan Stanley on the floor of th
VOA标准英语2008年（九月）
By Carol Pearson Washington, DC 13 September 2006 watch Older Father report Studies show older mothers are more likely to have children with Down Syndrome and other abnormalities. Now new research suggests children of older fathers are also at risk
2006年VOA标准英语（九月）
By Melinda Smith Washington, DC 05 October 2006 watch Athletes Heart Risk One of the leading causes of death among young athletes on the playing field or court is a heart condition called Hypertrophic Cardiomyopathy. But the results of a 25-year stu
2006年VOA标准英语（十月）
Different Blood Pressure in Both Arms Linked to Heart Disease Cardiologist Oscar Garfein takes blood pressure readings from both of his patients' arms. That technique saved the life of one of his patients. I found that in one arm, it was very, very l
VOA标准英语2012年(二月)
By Jessica Berman Washington 01 March 2006 About one-third of U.S. military personnel returning from the war in Iraq use mental health services after their return home, according to a study published
2006年VOA标准英语（三月）