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化学与生活密切相关．某品牌设100g巧克力中营养成分的含量如下表： （1）蛋白质属于 （填有机物或无机物） （2）摄入 元素不足，会导致骨骼疏松，易得佝偻病． （3）该巧克力成分中还...
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下列关于营养标签的说法正确的是
营养标签包括营养成分表、含量声称和比较声称
营养标签包括营养成分表、营养声称和营养成分功能声称
营养标签包括营养成分表、含量声称和营养成分功能声称
营养标签即食品标签
某品牌紫菜的营养成分表显示每100g紫菜含钠291mg这里所说的钠是指
元素
单质
分子
原子
种子的化学成分等物质其中营养成分主要有按照主要营养成分和用途可以分为
加工精度提高后谷物中营养成分降低为什么
某品牌紫菜的营养成分表显示每100g紫菜含钠291mg这里所说的钠是指
元素
单质
分子
原子
沼渣中营养成分比较丰富尤其是腐殖酸含量达到
5%~15%
20%~30%
1%~10%
10%~20%
沼渣中营养成分的种类及含量是多少
食品营养标签上营养成分表中的内容有
食品营养成分名称
营养成分图形
营养成分含量声称
NRV百分比
食品营养成分含量
某品牌营养剂部分营养成分的含量如下表所示表中的钙铁锌硒应理解为
金属
非金属
元素
分子
检测饲料中营养成分的含量采用
定量化学分析法
定性化学分析法
化学快速检测法
化学仪器分析法
化学与社会生产生活密切相关下列说法正确的是
石英只能用于生产光导纤维
从海水中提取物质都必须通过化学反应才能实现
为了增加食物的营养成分,可以大量使用食品添加剂
“地沟油”禁止食用,但可以用来制肥皂
下列哪些营养成分的0界限值为≤0.5g/100g
蛋白质
脂肪
碳水化合物
钠
下列食醋中营养成分含量最少风味较差的品种是
米醋
糖醋
熏醋
合成醋
某种巧克力的营养成分表上标有每100g能量2361kJ该标识的含义与下列物理量含义类似的是
热量
内能
热值
比热容
营养成分表的构成包括能量和营养成分的名称能量和营养成分的含量以及该含量占营养素参考值的百分比等内容
产妇每天饮食中营养成分含量是怎样的
调制奶粉中营养成分的变化不包括
乳清蛋白含量增高
亚油酸含量增高
乳糖含量增高
钙、磷含量增高
铁、锌含量增高
营养标签中营养成分含量的比较常以作为参考
NRVs
RNI
UL
EAR
DRIs
在日常生活中引起食品腐败的主要原因是
化学物质污染
食品中营养成分含量高
食物水分不断蒸发
微生物的大量繁殖
对除能量和核心营养素外其她营养成分进行营养声称或营养成分功能声称时时在营养成分表中应标示出该营养成分
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下列有关细胞结构和功能的叙述正确的是
4分Therighttovoteisoneofthemostfundamentalrightsofanydemocracy.Yetfortoolongtoomanyofourfellowcitizensweredeniedthatrightsimplybecauseofthecoloroftheirskin. FiftyyearsagothisweekPresidentLyndonJohnsonsignedalawtochangethat.TheVotingRightsActbrokedownlegalbarriersthatstoodbetweenmillionsofAfricanAmericansandtheirconstitutionalrighttocastballot投票.Itwasandstillisoneofthegreatestvictoriesinourcountry'sstruggleforcivilrights.Butitdidn'thappenovernight.Countlessmenandwomenmarchedandorganizedsatinandstoodupforourmostbasicrights.Forthistheywerecalledagitators挑拨者andun﹣American;theywerejailedandbeaten.Somewereevenkilled.Butintheendtheyreaffirmed重申theideaattheveryheartofAmerica:thatpeoplewholovethiscountrycanchangeit. Ourcountryisabetterplacebecauseofallthoseheroesdidforus.ButasoneofthoseheroesCongressmanJohnLewisremindedusinSelmathispastMarchThere'sstillworktobedone.FiftyyearsaftertheVotingRightsActtherearestilltoomanybarrierstovoteandtoomanypeopletryingtoerect建立newones.We'veseenlawsthatrollbackearlyvotingforcepeopletojumpthroughhoopstocastaballotorleadtolegitimate合法的votersbeingimproperlypurgedfromtherolls.Overtheyearswehaveseenprovisions规定specificallydesignedtomakeitharderforsomeofourfellowcitizenstovote.Inademocracylikeourswithahistorylikeoursthat'sadisgrace.That'swhyaswecelebratethe50thAnniversaryoftheVotingRightsActI'mcallingonCongresstopassnewlegislationtomakesureeveryAmericanhasequalaccesstothepolls. It'swhyIsupporttheorganizersgettingfolksregisteredintheircommunities.Andit'swhynomatterwhatpartyyousupportmymessagetoeveryAmericanissimple:getoutthereandvote﹣notjusteveryfouryearsbuteverychanceyougetbecauseyourelectedofficialswillonlyheed留心yourvoiceifyoumakeyourvoiceheard.Thepromisethatallofusarecreatedequaliswrittenintoourfoundingdocumentsbutit'suptoustomakethatpromisereal.Togetherlet'sdowhatAmericanshavealwaysdone:Let'skeepmarchingforwardkeepperfectingourunionandkeepbuildingabettercountryforourkids. [FromObamaWeeklyAddressAug8th2015] 1ManyAmericansweredeniedtherighttovotesimplybecause. A.theywereunwillingtogooutandvote B.theywereagitatorsandun﹣American C.toomanypeopletriedtoerectnewbarriers D.thecoloroftheirskinwasdifferent 2WhatmessagedoesPresidentBarackObamawanttoconveyinthisspeech A.ThePresidentunderlinedthatallpeoplearecreatedequal. B.ThePresidentcelebratedthe50thAnniversaryoftheVotingRightsAct. C.ThePresidentreaffirmedthecommitmenttoprotectingtherighttovote. D.ThePresidentcalledoneveryonetoseizeeverychancetoelectofficials.
下列与蛋白质相关内容的描述正确的是
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学校栽了20行柳树平均每行X棵学校一共栽了棵柳树当X＝12时柳树一共有棵．
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将绿色的小麦叶片放在温度适宜的密闭容器内在不同的光照条件下测定该容器内氧气量的变化实验结果如图所示．以下说法错误的是
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一面墙上开了一个窗户示意图如图．这面墙每平方米需要60块砖砌这面墙大约需要多少块砖单位m
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10分WhatisecofashionEco﹣fashionisaboutmakingclothesthattakeintoaccounttheenvironmentthehealthofconsumersandtheworkingconditionsofpeopleinthefashionindustry.Itisacomplexphenomenonandthecommonuseofthetermcoverstwoaspectsoffashion﹣‘ecological'and‘ethical'.Ecologicalfashionusuallyreferstotextile织物andclothingproductionprocessesandtheenvironmentalissuessurroundingthem;ethicalfashiongenerallyrelatestotheworkingconditionsinvolvedintheproducingprocesses. WhataretheproblemswithfashionAcloserlookatthefashionindustrypointsoutmanyproblemsthatarecommonpracticesinthecreationofourfashionsfromthefieldtothefactory.Firstlytheproductionoftextilespollutestheenvironmentheavily.Cottonplantingusespesticides;sheepfarmingandwoolcleaningcontributetoglobalwarming;syntheticsmaking人造纤维生产bringsaboutwastewhichdoesharmtoourenvironment.Secondlyeverystageofclothingproductionhasasignificanteffectontheenvironment.Theyalluseagreatdealofenergyandsomealsoinvolveharmfulchemicals.Inadditiontothisthereisalotofwasteproducedintheprocessespeciallyintheformofpollutedwater.Thirdlygrowingconsumptionlevelsandourshoppinghabitsfurtherworsenthebadeffects.Wearenowbuyingclothesinincreasingquantitieswithoutrealizingthescaleonwhichitaffectsnaturalenvironmentandwearealsoquicktothrowawayclothesthathavebeenwornonlyacoupleoftimes. ThenhowtosolvetheproblemsOtherindustriesthatdesignproductsareaheadofthefashionindustrywhenitcomestochoosingsustainablematerialsdesigningforminimumwastechoosingenergyefficientmanufacturingandcreatingproductsforlongevity.Thefashionindustryhasbeenslowtoadoptthesechangesandpartoftheproblemistheverynatureoffashion.Toalargedegreeitisthefashionproducersthatreallyhavethepowerandtheresponsibilitytoshapeourfuture.Therearenumerouswaysinwhichtheseproducerscanreducetheirecologicalfootprintfromswitchingtogreenenergyandreducingenergyusethroughselectingsustainablematerialsandchoosinglocalsupplierstorecycleandminimizewaste.Ontheotherhandasconsumerswecanallmakecontributionsbyselectingenvironmentallyfriendlyclothingandreducingclothingconsumption. Thereissomeconcernthatecofriendlyfashionsarejustatrendthatwewilleventuallygrowtiredofbutwecanmakesurethatdoesn'thappen.Nowmanypeoplearebeginningtoshopfororganicfoodproductsbecausethebenefitsofeatingfoodfreeofchemicalsarestraightforwardandimmediate.Theyrelatedirectlytoourpersonalhealth.Infactchoosingecofashioncanalsocontributetoourpersonalhealththoughitismostlydonebywayofkeepingthehealthoftheplanet.
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1分Whenherealizedthepolicehadseenhimthemantheexitasquicklyaspossible. A.madeup B.madefor C.madeout D.madeoff
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下列关于生物育种技术的叙述和分析错误的是
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