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What you’ ve always heard? We’ re eating way too much salt. The average American gets about 3.4 grams of sodium every day, far m
What you’ ve always heard? We’ re eating way too much salt. The average American gets about 3.4 grams of sodium every day, far m
admin
2019-03-28
60
问题
What you’ ve always heard? We’ re eating way too much salt. The average American gets about 3.4 grams of sodium every day, far more than the upper limit of 2. 3 grams recommended by the USDA. The Institute of Medicine estimates that reducing sodium intake nationwide could prevent 100,000 deaths every year.
The headlines now? It’ s time to get tough. The New York city health department recently kicked off a national effort to cut the amount of salt in packaged and restaurant food by 25 percent over five years. Eighty percent of the salt in the average person’ s diet comes from those sources, not from the saltshaker.
But wait! The benefits of salt reduction are surprisingly murky. At least 13 studies have tried to tease out what happens to people who choose to eat salty or not-so-salty food—and the results have pointed in every direction. Some studies suggest that cutting salt protects the heart: others suggest that intense salt reduction can actually increase heart problems. What’ s needed, Dr. Michael Alderman says, is a randomized, controlled trial, in which people are put on different diets and followed for years. It’ s the only way to get a reliable answer, but it’ s never been done.
So what should you do? Go easy on processed foods and eat more produce. Those changes will improve your diet in a variety of ways and cut the amount of sodium you consume. If your blood pressure is high, work with your doctor to control it with drugs and lifestyle changes. If your blood pressure is healthy? At this point, there’ s no convincing reason for you to count every grain.
What does the word "murky" (Para. 3) probably mean?
选项
A、Significant.
B、Unclear.
C、Obvious.
D、Exaggerated.
答案
B
解析
根据第三段第三句“At least 13 studies have tried to…and the results have pointed in every direction.”可知,降低食盐的摄人量的益处并不确定。由此可知,murky表示“含糊的,不确定的”的意思。significant:重大的,重要的,有意义的;unclear:不清楚的,不确定的;obvious:明显的,显著的;exaggerated:夸张的,言过其实的。故选B。
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本试题收录于:
英语题库普高专升本分类
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英语
普高专升本
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