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
7
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
Questionsarebasedonthefollowingdata.[img]2022m10s/ct_ve01203002j_egreqtbz
A.1M启动后,2M才能启动;1M停转后,2M才能停转 B.1M启动后,2M才
下列属于知识产权外延的是()。A.工业产权 B.实用新型 C.外观
郭沫若先生的作品有()。A.《家》 B.《虎符》 C.《武则天》 D.《屈
关于B细胞,下列说法不正确的是A. B.细胞表面表达的mIg,是B细胞的抗原受
银行内部管理人员根据银行所承担的风险计算的、银行需要保有的最低资本量为()。A
(1)求实数a,b的值;
治疗血瘀气滞,经行腹痛,兼风湿肩臂疼痛者,应选用( )。A.桃仁 B.丹参
保险人、被保险人为查明和确定保险事故的性质、原因和保险标的的损失程度所支付的必要
左旋多巴治疗帕金森病,下列说法错误的是A.产生效果慢 B.对氯丙嗪引起的帕金森
最新回复
(
0
)