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[00:11.10]alarm [00:12.47]n.1(U)惊恐,惊慌2.(C)警报 vt.1.使惊恐,惊动2.向...报警 [00:13.84]alcohol [00:15.23]n.(U)酒精,乙醇 [00:16.61]alert [00:17.93]a.机灵的,警惕的 [00:19.25]alien [00:20.64]a.1.外国的2.相异的3.(to)不相容

NPR 2010-08-24

Federal officials are focusing on manufacturing and processing facilities as they work to get to the bottom of a salmonella outbreak in eggs. The Food and Drug Administration says there haven't been many standards in place for farms like the two in I

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NPR 2011-06-06

Agricultural officials say they think an organic farm in northern Germany was the source of the deadly E. coli outbreak that has sickened more than 2,000 people in Europe. Twenty-two people have died. Investigators traced the bacteria to beansprouts

NPR 2011-10-06

In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep

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SSS 2010-11-08

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NPR 2009-07-07

President Obama says a preliminary agreement reached today with Russian President Dmitry Medvedev is an important step toward increasing nuclear security. We have signed a joint understanding for a follow-on treaty to the START agreement that will r

NPR 2009-03-10

President Barack Obama today moved to officially lift the Bush administration's restrictions on human embryonic stem cell research. The move reverses a 2001 directive from Mr. Obama's predecessor in the White House. At a signing ceremony in the East

NPR 2010-09-10

The State Department is warning Americans abroad to be on alert for possible protests against the US after a Florida church announced it would burn copies of the Koran this Saturday. Ahead of that, NPR's Michele Kelemen reports governments worldwide

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Scientists find neural stem cell regulator

WASHINGTON, April 16 (Xinhua) -- Researchers at the University of Colorado (CU) have found that lack of a specific gene interrupts neural tube closure, a condition that can cause death or paralysis. The study was the cover story this week in the jour

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