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更多“MRCoNS、VRE、PRSP、CRE分别指的是：”相关的问题
第1题
A、les
B、leur
C、nous
D、vous
第2题
Snorers(打鼾的人) have always been made jokes. In cartoons，their nasal roar 1ifts the roof off houses. In situation comedies，there's the wife who rolls her eves at her snoring bedmate. But in reality，it's not all that funny. In fact，snoring can be a nightmare for snorers and their troubled partners. who may wake up several times a night to poke，and maybe hoist loved ones onto their sides for a 1ittle relief.
Risks of Snoring Problems
But the nightly racket is more than a potential relationship strain. According to the latest research, an increasingly older and heavier population may make this condition an even greater health risk than we previously thought. For Maggie Moss-Tucker. successful treatment for a longtime snoring problem came almost by accident. One fall morning in 2005，she saw a sign at her local gym seeking snorers as volunteers for a study at Boston's Brigham &Women's Hospital. Moss-Tucker, now 56, was intrigued. She had started snoring nearly a decade earlier. “I'd tried everything to stop. ”she says. from sleeping upright to using nose strips or a mouth guard. But to her and her husband's dismay. nothing worked. When she signed up for the study and spent a night at a suburban Boston sleep lab, she found out why.
After reviewing her sleep patterns and oxygen levels, researchers told her that her snoring was actually an indication of something worse. She suffered from a sleep apnea(呼吸暂停)，a condition in which patients stop breathing repeatedly as they sleep and can wake up as many as 100 times a night—often without remembering it. That kind of revelation has led to doctors re-evaluating a condition once treated as little more than a nuisance. “In the past. snoring has been treated like a joking matter：you never talked about it with your doctor，”says Dr. David Rapoport, medical director of the Sleep Disorders Center at New York University Medical Center (NYC. . “But when it becomes very prominent or such that it wakes you up OF interferes with brea-thing，it can be a problem. ”
Sleep apnea，in which the airway becomes blocked of. 1ess often. the brain fails to properly control breathing during sleeping. can be viewed as one extreme of the snoring spectrum. Soft snoring. which is not generally considered a health hazard. would be at the other end. As the sound and persistence of a patient's snoring grows，so do the health concerns. A study published in the March I issue of the journal Sleep found that loud snorers had a 40 percent greater risk than non-snorers of suffering from high blood pressure, 34 percent greater odds of having a heart attack and a 67 percent greater chance of having a stroke.
That's a problem given the number of noisy sleepers out there. In a recent poll by the National Sleep Foundation， about one third of US working adults reported snoring at least a few nights in the previous month. Snoring generally worsens with age so the rate is even higher among the elderly. And，contrary to common perceptions，it's nearly as common in women as men. Menopause(更年期) appears to be a factor，as is weight. Being overweight can cause thickness in the airway tube， holding back the flow of oxygen.
Treatment of Snoring Problems
Yet many who regularly snore don't realize that it could be bad for their health. The research linking hypertension, cardiac problems and loud snoring is relatively new. And though awareness of sleep apnea is growing, specialists say the condition is still vastly undertreated. Primary-care physicians don't routinely ask patients about the quality of their sleep—though that is beginning to change and few patients think to tell their doctors that they're snoring, unless it becomes hazardous to their partner. Sleep specialists estimate that between 12 million and 18 million Americans have some form. of sleep apnea but many of them, like Moss-Tucker，remain undiagnosed for years. Re
A．the causes of snoring problems
B．the treatments of snoring problems
C．the risks of snoring problems
D．the hazards and the treatments of snoring problems
第4题
A．published by Beethoven's brother
B．not written by Beethoven
C．written in Beethoven's youth
D．inferior efforts
第8题
In fact, genetically modified foods are already very much apart of out lives. A third of corn and more than half the soybeans and cotton grown in the U. S. last year were the product of biotechnology, according to the Department of Agriculture. More than 65 million a-cres of genetically modified crops will be planted in the U. S. this year. The genetic genie(妖怪) is out of the bottle.
Yet there are clearly some very real issues that need to be resolved. Like any new prod-uct entering the food chain, genetically modified foods must be subjected to rigorous testing. In wealthy countries, the debate about biotech is tempered by the fact that we have a rich array of foods to choose from and a supply that far exceeds our needs. In developing countries desperate to feed fast-growing and underfed populations, the issue is simpler and much more urgent: Do the benefits of biotech outweigh the risks?
The statistics on population growth and hunger are disturbing. Last year the world's population reached 6 billion. The U. N. estimates that nearly 800 million people around the world are undernourished. The effects are devastating. About 400 million women of child-bearing age are iron deficient, which means their babies are exposed to various birth defects. As many as 100 million children suffer from vitamin A deficiency, a leading cause of blindness.
How can biotech help? Biotechnologists have developed genetically modified rice that is fortified with beta-carotene—which the body converts into vitamin A—and additional iron, and they are working on other kinds of nutritionally improved crops. Biotech can also improve farming productivity in places where food shortages are caused by crop damage attributable to pests, drought, poor soil and crop viruses, bacteria or fungi.
What's the passage mainly about?
A．The world's food problems.
B．The new advancement in biotech.
C．The characteristics of genetically modified foods.
D．How biotech can help solve the world's food problems.
第10题
What did the Americans do with their resolution?
A．They insisted on it.
B．They reworded it.
C．They submitted it again.
D．They gave it up.
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