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Why Are Some People Double-Jointed? Can you bend your thumb backwards until it touches your wrist? If you join your hands behind your back, can you lift them over your head without letting go? If you can, you might be what some people call double-joi
英语听力文摘 English Digest
Broadcast: Jan 21, 2003 U.S. researchers have discovered another breast cancer gene that may provide a new point of attack against the disease. The 1) molecule is common to many types of breast cancer
VOA2003（上）-科技先知
By Nancy Steinbach Broadcast: October 22, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. Researchers say a drug developed several years ago reduces the chance that older wo
VOA2003（下）-环境与健康
Can you bend your thumb backwards until it touches your wrist? If you join your hands behind your back, can you lift them over your head without letting go? 你是否能将大拇指向后弯曲直至其触碰到手腕部位？你将双手在背后紧握
2018年NPR美国国家公共电台2月
Why Is Gravity Good For Us? When astronauts return from long missions in space, their exit from the spacecraft is usually hidden from public view. This is because after several months in weightless conditions, things we usually take for granted, such
英语听力文摘 English Digest
BEIJING, July 26 (Xinhuanet) -- The breast cancer is more deadly to black women than to whites, a new study found. This finding was published online Monday on the Journal of Clinical Oncology in the United States. The study was done by the City of Ho
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