首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Vitamins, like minerals, are chemicals. There is absolutely not difference in the chemical structure 【S1】______ of the natu
Vitamins, like minerals, are chemicals. There is absolutely not difference in the chemical structure 【S1】______ of the natu
admin
2010-01-26
40
问题
Vitamins, like minerals, are chemicals. There
is absolutely not difference in the chemical structure 【S1】______
of the nature vitamin C and the chemical structure 【S2】______
of the synthetic vitamin C. Also, while most
substances are harmless at very low level of intake 【S3】______
(吸入), all substance—even the elements that are
essential to life—can be dangerous if you overdo
them. Take water for example. Six or eight glasses
a day will keep your body in good fluid balance.
But you can also be drown in it. 【S4】______
Some people argue that because individual 【S5】______
vary greatly in their need for nutrients, it can 【S6】______
necessarily be stated that any given amount is too
much; that is all relative. But since there is little
solid information on what is the optimum intake
of any essential nutrient in healthy individuals, it
would be impossible to give guidelines that take
these proportional needs into count. 【S7】______
Just as with other drags, the relation to different 【S8】______
vitamin dosages varies, with some people better able
than others to tolerate large amounts. While we do
know that very specifically what the toxic level is 【S9】______
for vitamins A and D, we are far less sure about
vitamin E, even though it, too, is fat-soluble, and
we still don’t understand the water-soluble vitamins,
the C or the B groups, which the body can’t store. 【S10】______
【S4】
选项
答案
be→be
解析
转载请注明原文地址:https://kaotiyun.com/show/VDdK777K
0
大学英语六级
相关试题推荐
A、Inareaswithfewweedsandunwantedplants.B、Inareaswithasevereshortageofwater.C、Inareaslackinginchemicalfertil
A、Packinguptogoabroad.B、BrushinguponherEnglish.C、DrawingupaplanforherEnglishcourse.D、Applyingforavisatoth
Apartfromaseriesoffortunateevents,whatisitthathasmadeGooglesosuccessful?BrinandPagedecidedtosetuptheiro
A、Michael’sparentsgotdivorced.B、KarenwasadoptedbyRayAnderson.C、Karen’smotherdiedinacaraccident.D、Atruckdriver
Itdoesn’tcomeasasurprisetoyoutorealizethatitmakesnodifferencewhatyoureadorstudyifyoucan’trememberit.You
Itdoesn’tcomeasasurprisetoyoutorealizethatitmakesnodifferencewhatyoureadorstudyifyoucan’trememberit.You
Chinahasoutlinedanewapproachtoforeigninvestment,withplannerssayingtheywillnowfocuslessonattractinglargeamoun
Wal-MartWal-Martismorethanjusttheworld’slargestretailer.Itisaneconomicforce,aculturalphenomenonandalight
Sleepisafunnything.We’retaughtthatweshouldgetsevenoreighthoursanight,butalotofusgetbyjustfineonless,
随机试题
Oneofthewell-knownofAmericanwritersisSamuelClemens,whosepennameisMarkTwain.Bornin1835,TwaingrewupintheMi
下列关于斗篷野照射体位的描述正确的是
患者,男,22岁,胸痛,同时伴发热,气急,心界明显扩大。心尖冲动位于心浊音界左缘内侧2cm,肝肋下5cm,心电图示窦性心动过速,低电压。诊断急性非特异性心包炎最特异的是
下列关于产钳术的描述,正确的是
一个术前病人既想通过手术解除病痛,又担心手术会影响机体某些功能,所形成的动机冲突是
重要房屋的结构设计安全等级应为()级。
某DWDM传输设备安装工程由甲、乙、丙、丁四个站组成,其中甲站、丁站为终端站,乙站、丙站为光放站。本工程新建一套公务系统、一套网管系统,施工单位承包方式为包工不包料。项目经理对工程进行工作分解后,根据工程量列出了工作的持续时间,所需主要资源以及工作的工艺关
甲股份有限公司(以下简称“甲公司”)系一家上市公司,2014年至2015年对乙股份有限公司(以下简称“乙公司”)投资业务的有关资料如下。(1)甲公司于2014年1月1日购入乙公司20%的股份,购买价款为1300万元,支付手续费等相关费用200万元
Interlocutor:Goodmorning(afternoon/evening).CouldIhaveyourmarksheets,please?Thankyou.(Handoverthemarksheetstot
[A]bed[B]chair[C]radio[D]desk[E]watch[F]telephone[G]televisionItismadeforyoutosleepin.
最新回复
(
0
)