快速導航
學歷類
職業資格
公務員
醫衛類
建筑工程
外語類
外貿類
計算機類
財會類
技能鑒定
Thefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeat,ithas,atthesametime,mademanyfoodsunfittoeat.Someresearchhasshownthatperhapseightypercentofcancerisrelatedtothedietaswell,especiallycancerthecolon.Differentculturesaremorepronetocontractcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodrelatedtollnessisnotanewdiscovery.In1945,governmentresearchersrealizedthatitratesandnitrites,commonlyusedtopreservecolorinmeats,andotherfooddditives,causedcancer.Yet,thesecarcinogenicadditivesremaininourfood,nditbecomesmoredifficultallthetimetoknowwhichthingsonthepackginglabelsofprocessedfoodarehelpfulorharmful.Theadditiveswhichweeatarenotallsodirect.Farmersoftengivepenicillintobeefandpoultry,andbecauseofthis,penicillinhasbeenfoundinthemilkoftreatedcows.Sometimessimilardrugsareadministeredtoanimalsnotformedicinalpurposes,butforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministration(FDA)hastriedrepeatedlytocontroltheseprocedures,thepracticescontinue.
48.Whatisthemaintopicofthepassage?
A.Foodandourhealth
BFoodandadditives
C.Foodandcancer
DFoodandculture
49AllofthefollowingstatementsaretrueEXCEPT_______.
AFortypercentofcanceriscausedbyproblemsrelatedtofood.
BResearchershaveknownaboutthepotentialdangeroffoodadditivesformanyyears
C.Weeatsomeofthefoodadditivesdirectlyandsomeindirectly
DDrugsarealwaysgiventoanimalsformedicinalpurposes
50.Whydofarmersgivedrugstotheiranimals?
A.tospeedupthegrowthofanimals
BTomaketheanimalsfatter
Ctomaketheanimals’meatfittoeat
DTomaketheanimals’meatrichinnutrients
51.Itcanbeinferredfromthepassagethat_________.
Ascientisthavemadeallthefoodfittoeat
Bonlyinrecentyearshavepeoplefoundthatthefoodisrelatedtoone’sillness
Callkindsofcancerarerelatedtothediet
Dsomeadditivesareharmfultoourhealth
52.Theword“this”inthesecondsentenceofparagraph2mostprobablyrefersto__________.
Afarmer
Bpenicillin
Cbeefandpoultry
Dthefactthatfarmersoftengivepenicillintoabeef
主站蜘蛛池模板：
性欧美长视频免费观看不卡|
亚洲无线码中文字幕在线|
人妻少妇精品一区二区三区|
狼人青草久久网伊人|
成人免费毛片aaaaaa片|
无码国产福利av私拍|
久久久无码精品亚洲日韩精东传媒|
亚洲国产欧美在线人成大黄瓜|
妺妺窝人体色www看美女|
精品免费国偷自产在线视频|
国产精品嫩草影院免费观看|
精品久久久久久中文墓无码|
国产10000部拍拍拍免费视频|
激情射精爆插热吻无码视频|
伊人久久大香线蕉综合影院|
最近2019中文字幕一页二页|
又硬又粗进去好爽免费|
精品无码一区二区三区av|
丰满岳跪趴高撅肥臀尤物在线观看|
久久精品国产曰本波多野结衣|
亚洲综合网国产精品一区|
色综合伊人色综合网站|
少妇粉嫩小泬喷水视频www|
风韵少妇性饥渴推油按摩视频|
亚洲精品自产拍在线观看亚瑟|
亚洲加勒比少妇无码av|
四虎影视无码永久免费|
国产精品香蕉在线的人|
亚洲妇熟xxxx妇色黄|
国产午夜成人久久无码一区二区|
成人精品国产区在线观看|
在线看片免费人成视频影院看|
色欲综合视频天天天综合网站|
日本久久久久久久做爰片日本|
中文字幕av日韩精品一区二区|
一二三四日本中文在线|
好男人视频社区在线观看www|
欧美 亚洲 国产 另类|
亚洲暴爽av天天爽日日碰|
国产性生大片免费观看性|
国产成人亚洲精品无码mp4|
