模拟试题

The term“genetically modified”(G-M)is an offspring of another term：biotechnology，a word that‘s been around for about 30 years.Biotechnology was coined in the shadow of new techniques that allowed scie...

Should doctor-assisted suicide ever be a legal option? It involves the extreme measure of taking the life of a terminally ill patient when the patient is in extreme pain and the chances for recovery a...

William Shakespeare described old age as “second childishness”—— sans teeth， sans eyes， sans taste. In the case of taste he may， musically speaking， have been even more perceptive than he realized. A ...

I had two routine checkups last week， and both the eye doctor and the dentist asked me to update my health history for their records. Their requests made sense. Health-care providers should know what ...

Depending on whom you ask， the experiment announced at a Texas medical conference last week was a potential breakthrough for infertile women， a tragic failure or a dangerous step closer to the nightma...

A widely heralded but still experimental cancer-fighting compound may be used someday to prevent two other major killers of Americans： heart disease and stroke. That was the implication of a remarkabl...

IF YOU’RE CONFUSED BY ALL the news about the health effects of eating fish， you’re not alone. On one hand， the omega-3 fatty acids in fish are known to reduce the risk of heart disease， as the America...

Watching a child struggle to breathe during an asthma attack is frightening for any parent. So it is only natural that most moms and dads will try just about anything——including spending a lot of mone...

Sleep is a funny thing. We’re taught that we should get seven or eight hours a night， but a lot of us get by just fine on less， and some of us actually sleep too much. A study out of the University of...

WHAT do you do when everyone hates you? That is the problem faced by America’s pharmaceutical industry. Despite its successes in treating disease and extending longevity， soaring health-care costs and...