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
Grilling meat gives it great flavor. This taste, though, comes at a price, since the process creates molecules called polycyclic
Grilling meat gives it great flavor. This taste, though, comes at a price, since the process creates molecules called polycyclic
admin
2016-05-26
75
问题
Grilling meat gives it great flavor. This taste, though, comes at a price, since the process creates molecules called polycyclic aromatic hydrocarbons(PAHs)which【C1】______DNA and thus increase the eater’s chances of developing colon cancer. For those who think barbecues one of summer’s great【C2】______, that is a shame. But a group of researchers led by Isabel Ferreira of the University of Porto, in Portugal, think they have found a way around the problem. When barbecuing meat, they suggest, you should add beer.
This【C3】______advice was the result of some serious【C4】______, as Dr. Ferreira explains in a paper in the Journal of Agricultural and Food Chemistry. The PAHs created by grilling form from molecules called free radicals which, in turn,【C5】______from fat and protein in the intense heat of this type of cooking. One way of stopping PAH -formation, then, might be to apply chemicals called antioxidants that mop up free radicals. And beer is rich in these, in the shape of melanoidins, which form when【C6】______is roasted. So Dr. Ferreira and her colleagues prepared some beer marinades, bought some steaks and headed for the griddle.
One of their marinades was based on Pilsner, a(n) 【C7】______lager. A second was based on a black beer(type unstated). Since black beers have more melanoidins than light beers—as the name【C8】______, they give it color—Dr. Ferreira’s hypothesis was that steaks steeped in the black-beer marinade would form fewer PAHs than those steeped in the light-beer marinade, which would, in turn, form fewer than control steaks left unmarinated.
And so it proved. When cooked, unmarinated steaks had a(n) 【C9】______of 21 nanograms(billionths of a gram)of PAHs per gram of grilled meat. Those marinated in Pilsner averaged 18 nanograms. Those marinated in black beer averaged only 10 nanograms,【C10】______and healthy too, then. Just what the doctor ordered.
A)average B)approximately C)barley D)damage
E)delights F)distinguish G)experiments H)flavor
I)form J)pale K)suggests L)tasty
M)typical N)ultimate O)welcome
【C9】
选项
答案
A
解析
空格位于固定搭配之间,anaverage of,意为“平均为”,average意为“平均数”,所以应填入A)average。
转载请注明原文地址:https://kaotiyun.com/show/KzY7777K
0
大学英语四级
相关试题推荐
EducationStudyFindsU.S.FallingBehindA)TeachersintheUnitedStatesearnlessrelativetonationalincomethantheircoun
Don’tSayIt’sGlobalWarmingA)AsTexasendurestheslow,agonizingdeathofourentireagriculturalsectorbydrought,acheck
Consumersarebeingconfusedandmisledbythehodge-podge(大杂烩)ofenvironmentalclaimsmadebyhouseholdproducts,accordingto
Haveyoueverthoughtaboutwhatdeterminesthewaywearewhenwegrowup?RemembertheTVprogramSevenUp?Itstartedfollowi
AFewAspectsofAmericanLifeTravelA)It’ssummertime.FormanyAmericans,thisistheseasontotravel.Why?Becauseschool
NotSeeingtheForestfortheDollarBillsA)TheU.S.FishandWildlifeServicehasfinallydeclaredthespottedowlanendanger
Nooneknowsexactlyhowmanydisabledpeoplethereareintheworld,but【C1】______suggestthefigureisover450million.Then
Nooneknowsexactlyhowmanydisabledpeoplethereareintheworld,but【C1】______suggestthefigureisover450million.Then
Therearerareinstanceswhenjusticealmostceasestobeanabstract【C1】______.Rewardor【C2】______areoutquiteindependentof
Acidrain,whichisaformofairpollution,currentlybecomesasubjectofgreatdebatebecauseofwidespreadenvironmentaldam
随机试题
A.虹膜B.盖膜C.玻璃膜D.位砂膜将眼房分隔成前房和后房的是()
不属于第二信使的是
目前施工图预算的主要编制方法是()。
若Gk=95kN,Qk=20kN,gk=2.600kN/m,qk=0.9kN/m,则梁的控制截面内力设计值为______kN·m。若Mmax=280.1kN·m,则梁的受拉配筋As=______mm2。
体操基本动作术语中,()是指腿做周或周以上的绕环式动作。
古希腊著名哲学家柏拉图在()中借助“洞穴中的囚徒”阐释了教育的概念。
国家发展劳动者休息和休养的设施,规定()。
Americansocietyisnotnap(午睡)friendly.Infact,saysDavidDinges,asleepspecialistattheUniversityofPennsylvaniaSchool
WhichnameisNOTrelatedtoBritain?
A、Itistheabilitytogethighscoresonsometests.B、Itistheabilitytodowellinschool.C、Itistheabilitytodealwith
最新回复
(
0
)