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
23
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://jikaoti.com/ti/MepFFFFM
0
大学英语四级
相关试题推荐
About2percentofAmericanstudentsarenowtaughtathome.Educatorsareconfusedabouthowthisgrowingpracticeshouldbere
TheEndoftheBook?A)Amazon,byfarthelargestbooksellerinthecountry,reportedonMay19thatitisnowsellingmorebook
Haveyoueverthoughtaboutwhatdeterminesthewaywearewhenwegrowup?RemembertheTVprogramSevenUp?Itstartedfollowi
Frenchfries,washeddownwithapintofsoda,areafavoritepartoffast-foodlunchesanddinnersformillionsofAmericanyou
Frenchfries,washeddownwithapintofsoda,areafavoritepartoffast-foodlunchesanddinnersformillionsofAmericanyou
Globalwarmingisatrendtowardwarmerconditionsaroundtheworld.Partofthewarmingisnatural;wehaveexperienceda20,00
UsingtheMindtoFightDiseasesA)Psychologyhasanewapplicationinthefieldofmedicine.Manydoctors,togetherwiththeir
Moreandmoreoftheworld’spopulationarelivingintownsorcities.Thespeedatwhichcitiesaregrowinginthelessdevelop
A、Hemustmeethisteacher.B、Hemustattendaclass.C、Hemustgooutwithhisgirlfriend.D、Hemuststayatschooltofinishh
A、Theysharecertaintraditionalcustoms.B、Theysharecertaintravelplaces.C、Theysharecertaintraditionalfoods.D、Theysha
随机试题
EcosystemsinandoutofBalanceA)Itisknownthatecosystemshaveastructureconsistingofproducers(greenplantswhic
下列各项中,属于创造性实践的特点的是
A左上腹和肩胛间B右肩胛C心前区和左臂尺侧D上腹部和脐区E腹股沟区心绞痛的牵涉痛区是
阿托品松弛内脏平滑肌的特点是
血红蛋白BArt胎儿水肿综合征临床表现包括
骨巨细胞瘤的典型X线征象
下列选项正确的是()。
为了帮助精神病患者老张出院之后在社区进行康复,社会工作者小王来到老张家中做家庭会谈,了解老张的日常起居情况和居住环境,探问老张与家人的交往状况;之后,小王又联系了老张的主治医生,了解老张就诊和服药情况;此外,小王还查阅了老张的社区档案,在上述工作中,小王运
a=-4。(1)点A(1,0)关于直线x-y+1=0的对称点为(2)直线l1:(2+a)x+5y=1与直线l2:ax+(2+a)y=2垂直
()thatJohnshouldhavepassedtheexamination.
最新回复
(
0
)