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  3. Recently, the American Heart Association surveyed 1,000 people nationwide about their thoughts on sodium and heart health. 61% s

Recently, the American Heart Association surveyed 1,000 people nationwide about their thoughts on sodium and heart health. 61% s

admin2012-09-26  27
问题 Recently, the American Heart Association surveyed 1,000 people nationwide about their thoughts on sodium and heart health. 61% said that they believed sea salt Was a low-sodium alternative to table salt. They can be forgiven for thinking so. Sea salt is marketed as a healthy food, added to soups, potato chips and a wide variety of packaged snacks labeled "low sodium", "all natural" and "healthy". But in reality, sea salt and table salt are not terribly different, at least chemically. The real differences are in how the two are used in cooking.
   Table salt comes from underground salt deposits.  Companies that sell it typically add something to keep it from clumping (结块). During processing, table salt is stripped of many of its natural minerals. Sea salt, on the other hand, is made from evaporated seawater, with little processing, it retains most of its minerals, which some cooks say give it a better flavor.
     But both contain the same amount of sodium chloride (氯化氢) by weight, which means they contribute equally to total sodium consumption and have the same effect on blood pressure. Officials recommend that adults consume no more than 2, 300 milligrams of sodium a day, equivalent to a teaspoon of salt. You should eat less if you are black, hypertensive (患高血压 的) or older than 40. Yet most Americans consume more than double the amount they need, mostly from processed foods, so it is best to limit salt—of any kind.
The difference between table salt and sea slat lies in that table salt______.
选项 A、contains less natural minerals than sea salt
B、forms clumps more easily than sea salt
C、tastes better than sea salt
D、goes through less processing than sea salt
答案A
解析 细节题。从第二段可知，食盐加工程序较多，在期间会将很多天然矿物质剥离殆尽，而海盐则是相反的情况。因此A为正确答案。
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