首页
登录
职称英语
Salt is a principal wicked substance. Salt, sodium chloride (氯化钠), 40 percent of
Salt is a principal wicked substance. Salt, sodium chloride (氯化钠), 40 percent of
游客
2024-03-04
20
管理
问题
Salt is a principal wicked substance. Salt, sodium chloride (氯化钠), 40 percent of which is sodium (钠), is an element essential to human body. But sodium also boosts blood pressure. It makes the body retain fluids; greater fluid retention increases total blood volume, and this increase raises blood pressure. Where salt is used freely, a large proportion of the population develops chronic high blood pressure, which is a primary factor in heart disease and stroke. Farmers in northern Japan traditionally preserve their food with salt. They consume as much as six teaspoons a day-and 40 percent of them have high blood pressure. Among the Eskimos. of Greenland, however, who consume little salt, high blood pressure is almost unheard of.
The body of an adult needs only about 200 milligrams of sodium a day -- the amount in 500 milligrams, or 1/10 of teaspoon, of salt. But the average American consumes about 12,000 milligrams, or more than two teaspoons, of salt a day -- which supplies 24 times as much sodium as necessary; Germans consume an average 5,300 milligrams of salt a day. A sharp reduction is recommended by authorities everywhere -- to about 8,000 milligrams of salt per day for healthy people. For those who already suffer from high blood pressure, the normally suggested maximum is about 2,000 milligrams per day; more drastic restrictions -- to about 200 milligrams -- are required in special cases.
However, if this recommendation is adopted, food will become almost insufferably bland for most Americans and Europeans. So some physicians prescribe as a replacement seasoning potassium chloride (氯化钾), which tastes salty but contains no sodium. Meanwhile, it should also be taken into account that extremely heavy use of potassium -- unlikely because of its unpleasant taste in large doses -- can cause death. Hence, the substitution of one chloride for the other should be undertaken only on the advice of a doctor.
选项
A、The difference between sodium chloride and potassium chloride.
B、The function of slat in daily life.
C、A comparative study of slat consumption habits in some countries.
D、The relationship between salt consumption and high blood pressure.
答案
D
解析
全文主旨题。本文主要讨论食盐的过度摄取及其健康隐患(高血压)。
转载请注明原文地址:https://tihaiku.com/zcyy/3503370.html
相关试题推荐
【B1】[br]【B9】[audioFiles]audio_eufz200712_007(20091)[/audioFiles]thepercentag
【B1】[br]【B4】[audioFiles]audio_eufm_j68_007(20082)[/audioFiles]percent
OnlyabouttwopercentofAntarcticapeeksthroughthethicksheetsoficet
Carefulsurveyshaveindicatedthatasmanyas50percentofpatient___________
【S1】[br]【S8】H根据句意这一系统把事项的百分比降低了8%,因为本句后有提示bypercent,percentage意为百分比,最切合题意。M项r
A1999reportbytheUniversityofMichiganshowedthatabout62percentofhigh
A1999reportbytheUniversityofMichiganshowedthatabout62percentofhigh
A1999reportbytheUniversityofMichiganshowedthatabout62percentofhigh
A1999reportbytheUniversityofMichiganshowedthatabout62percentofhigh
【B1】[br]【B12】A、principallyB、unusuallyC、speciallyD、especiallyDprincipally“
随机试题
Wehumanbeingsarelandanimals,butwearealsocloselytiedtothesea.T
【S1】[br]【S2】B句子结构as…as…意思是“如同……一样”。
下列有关影响分布的因素不正确的是A.药物与血浆蛋白结合的能力 B.药物与组织的
再生障碍性贫血的诊断标准?
下列各项,属于腰痛病因的是A.体虚年衰 B.情志过极 C.饮食不节 D.外
肠套叠患儿的大便呈()。A.果酱样 B.柏油样 C.白陶土样 D.淡黄色
在肝主疏泄的各种功能表现中,最根本的是A.调畅情志 B.调畅气机 C.调节血
高峰期的理财活动包括()。A.量入节出、攒首付款 B.收入增加、筹退休金
关于房地产开发项目产品定位的原则,下列错误的是()。A:市场化原则 B:经济性
影响边坡稳定的因素主要有()。A.地形地貌 B.岩土类型和性质 C.地质构造
最新回复
(
0
)